IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Analytical study of abutment and pile behaviour of iab with soil interactioneSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
A study on the performance of circular footing embedded in geogrid reinforced...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Effect of cold swaging on the mechanical and microstructure characteristics o...eSAT Journals
Abstract In this experimental investigation, the post sintering mechanical treatment was implemented by cold swaging the produced tungsten alloy rods with composition (90W-7Ni-3Fe %wt) by cold isostatic press with 300 MPa, and appling different reductions of cross sectional area varying from 10% up to 50%. On the mechanical and microstructure properties of the tungsten heavy alloy (89.97W-7Ni-3Fe-0.03 Y2O3 %wt). Elemental powders were mixed for 120 min. Green compacted by cold isostatic press with 300 MPa, and Finally the specimens were sintered at 1480ºC for 90 min under vacuum atmosphere. It was found that the ultimate tensile strength and hardness were remarkably increased by about 39% and 45% respectively, by the application of 50% area reduction by swaging, relative to the sintered specimens. On the other hand, ductility and impact resistance were deeply decreased by about 75% and 53% respectively, by also, the application of 50% area reduction by swaging. Keywords: Cold Swaging, Liquid Phase Sintering, Tungsten Heavy Alloy, Powder Metallurgy.
Improvement of bearing capacity of square footing on compacted pond ash with ...eSAT Journals
Abstract Pond ash is waste by product which is producing in huge quantity by thermal power plants. The disposal of pond ash is the major problem to the environment. The way for disposing pond ash would be as a structural fill for low lying areas and used as embankment material. In this paper laboratory investigations are carried out to improve the bearing capacity of pond ash reinforced with geo-grid by conducting load tests in a model tank. The parameters varied during the tests were number of reinforcement layers and overlapping of reinforcement. The improvement of ultimate bearing capacity is observed. The ultimate bearing capacity ratios were evaluated. Keywords: Pond ash, Geogrid, Square footing, u/B, h/B, b/B, Bearing capacity ratio
Analytical study of abutment and pile behaviour of iab with soil interactioneSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
A study on the performance of circular footing embedded in geogrid reinforced...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Effect of cold swaging on the mechanical and microstructure characteristics o...eSAT Journals
Abstract In this experimental investigation, the post sintering mechanical treatment was implemented by cold swaging the produced tungsten alloy rods with composition (90W-7Ni-3Fe %wt) by cold isostatic press with 300 MPa, and appling different reductions of cross sectional area varying from 10% up to 50%. On the mechanical and microstructure properties of the tungsten heavy alloy (89.97W-7Ni-3Fe-0.03 Y2O3 %wt). Elemental powders were mixed for 120 min. Green compacted by cold isostatic press with 300 MPa, and Finally the specimens were sintered at 1480ºC for 90 min under vacuum atmosphere. It was found that the ultimate tensile strength and hardness were remarkably increased by about 39% and 45% respectively, by the application of 50% area reduction by swaging, relative to the sintered specimens. On the other hand, ductility and impact resistance were deeply decreased by about 75% and 53% respectively, by also, the application of 50% area reduction by swaging. Keywords: Cold Swaging, Liquid Phase Sintering, Tungsten Heavy Alloy, Powder Metallurgy.
Improvement of bearing capacity of square footing on compacted pond ash with ...eSAT Journals
Abstract Pond ash is waste by product which is producing in huge quantity by thermal power plants. The disposal of pond ash is the major problem to the environment. The way for disposing pond ash would be as a structural fill for low lying areas and used as embankment material. In this paper laboratory investigations are carried out to improve the bearing capacity of pond ash reinforced with geo-grid by conducting load tests in a model tank. The parameters varied during the tests were number of reinforcement layers and overlapping of reinforcement. The improvement of ultimate bearing capacity is observed. The ultimate bearing capacity ratios were evaluated. Keywords: Pond ash, Geogrid, Square footing, u/B, h/B, b/B, Bearing capacity ratio
An experimental study of square footing resting on geo grid reinforced sandeSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
NONLINEAR FINITE ELEMENT ANALYSIS FOR REINFORCED CONCRETE SLABS UNDER PUNCHIN...IAEME Publication
This paper presents an implementation of a three-dimensional nonlinear finite element model for evaluating the behavior of reinforced concrete slabs under centric load. The concrete was idealized by using eight-nodded solid elements. While flexural reinforcement and the shear were modeled as line elements, a perfected bond between solid elements and line elements was assumed. The nonlinear behavior of concrete in compression is simulated by an elasto-plastic work-hardening model, and in tension a suitable post-cracking model based on tension stiffening and shear retention models are employed. The steel was simulated using an elastic-full plastic model. The validity of the theoretical formulations and the program used was verified through comparison with available experimental data, and the agreement has proven to be good. A parametric study has been also carried out to investigate the influence of the slab thickness on column-slab connection response
Finite Element Analysis of Composite Deck Slab Using Perfobond Rib as Shear C...IJERA Editor
Nowadays, the composite decks are very common to use in composite or steel construction. In this case of study
the composite slabs have been investigated numerically by Finite Element Method (FEM). Five composite slabs
were analyzed using finite element software LUSAS. The deflection of each model were obtained and compared
with experimental test. Results showed a good agreement with the experimental data and indicate that the
perfobond rib is appropriate shear connector for the bridges decks.
Optimization of 3 d geometrical soil model for multiple footing resting on sandeSAT Journals
Abstract The study of ultimate bearing capacity (UBC) for a group of two or more footings had been made by investigators for the effect of interference of footings by various means, which is not considered in the conventional theories of bearing capacity. The Finite Element Method (FEM) initiated with 2D/3D modelling is being used for such complex problem. In the present study 3D geometrical soil models were developed and tested with multiple footing on cohesion-less soil using 3D FEM simulation software. This paper highlights optimized 3D geometrical soil model for multiple footing on sand. The meshing parameters, soil model size observed to be influencing the displacement and stresses to great extent. Keywords: FEM, geometrical soil model, interference, multiple footings.
Numerical Analysis of Engineered Steel Fibers as Shear Reinforcement in RC BeamsP singh
Using suitable fibers and additives in concrete to enhance its performance is an important consideration in the concrete industry with regard to the structural aspects of concrete. The purpose of this project is to investigate numerically the effectiveness of the engineered steel fiber as shear reinforcement in RC beams. Here steel fibers completely replaces the shear reinforcement (stirrups & links). The dimension of beam taken was 1000*150*150 mm with aspect ratio 80. The beams were reinforced with 10 mm steel bars as secondary reinforcement and 12 mm bars as main reinforcement on the tension side. Numerical analysis using ANSYS R16.1 software package was carried out. The load-deflection curves for the beams with different dosage of fibers were drawn superimposing their numerical values. Initially, in all three cases the curve was linear elastic and about 80% of ultimate load they tend to be non-linear. It was observed that there was fair agreement between the results which indicates some favourable aspects concerning the use of steel fibres as shear reinforcement in concrete beams. It was investigated that the inclusion of steel fibres (Hook End Type) improves the shear strength of RC beams without stirrups by improving the matrix between concrete and steel fibers. Thus this project focuses in the design and analysis using the software ANSYS R16.1 for an alternative steel reinforcement with better or equivalent performance.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
TRANSIENT ANALYSIS OF PIEZOLAMINATED COMPOSITE PLATES USING HSDTP singh
Piezoelectric materials have excellent sensing and actuating capabilities have made them the most practical smart materials to integrate with laminated structures. Integrated structure system can be called a smart structure because of its ability to perform self-diagnosis and quick adaption to environment changes. An analytical procedure has been developed in the work based on higher order shear deformation theory subjected to electromechanical loading for investigating transient characteristics of smart material plates. For analysis two displacement models are to be considered i.e., model-1 accounts for strain in thickness direction is zero whereas in model-2 in-plane displacements are expanded as cubic functions of the thickness coordinate. Navier’s technique has been adopted for obtaining solutions of anti-symmetric cross–ply and angle-ply laminates of both model-1 and model-2 with simply supported boundary conditions. For obtaining transient response of a laminated composite plate attached with piezoelectric layer Newmark’s method has been used. Effect of thickness coordinate of composite laminated plates attached with piezoelectric layer subjected to electromechanical loadings is studied.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
Theoretical work submitted to the Journal should be original in its motivation or modeling structure. Empirical analysis should be based on a theoretical framework and should be capable of replication. It is expected that all materials required for replication (including computer programs and data sets) should be available upon request to the authors.
Behaviour of mine waste as reinforced soileSAT Journals
Abstract Mining in Goa is done by open cast method, which gives rise to huge quantity of mining waste that occupies space and forms a source for series of problems. The enomerous amount of mine waste dumped around the regions of mining activity need to be reused constructively. Hence, if the mine waste is studied for its use as a reinforced soil, then burning issue of environmental pollution caused by mining dumps lying unprotected and unstabilized can be tackled to a certain extent. Also, it will be a step towards finding an alternative material for cohesionless soil in reinforced soil construction. In this study an attempt is made to check the suitability of soil from one of the mining dumps in Goa to be used as reinforced soil. The mine waste soil samples are studied for its compressive strength and shear strength behaviour by conducting two types of tests, unconfined compressive strength test and triaxial tests on unreinforced and reinforced soil samples. The reinforcement used in the form of a grid made from natural material bamboo. The bamboo grid reinforcement is placed in one, two and three layers, for studying the effect of reinforcement on compressive strength, shear strength parameters, stiffness and modes of failure of mining waste soil. The results of the tests on mining waste show improvement in strength as a reinforced soil mass. Index Terms: Mine waste, bamboo reinforcement, unconfined compression strength and triaxial tests
Experimental and Numerical Assessment of Crash Behavior of Welded Thin Wall R...IDES Editor
The crash behavior of Cold Rolled Mild Steel
(CRMS) closed form thin section produced by stitch welding
at periodic intervals of length was studied by conducting axial
compressive tests at loading velocities of 5 mm/min and 6000
mm/min. The deformation shape, peak forces and energy
absorption capacity of the sections estimated numerically
showed a good correlation with the experimental data.
Fixity depth of offshore piles in elastoplastic soft clay under dynamic loadeSAT Journals
Abstract
This work represents study of dynamic behavior of offshore piles embedded in elastoplastic soft clay, and estimating the fixity depth of pile. ABAQUS finite element program which used to simulate the problem. The soil was modeled in two case elastic state model and elastoplastic state model represented by cam-clay model, three dimension element used to represent the interaction between pile and soil, and laboratory tests used to getting the real properties of clayey soil and to descried interface. The results obtained developed two empirical equations used to calculate depth of pile fixity for pile embedded in elastic and elastoplastic soil respectively. Also, show the depth of pile fixity is increase about (40 %) due to change soil model from elastic to plastic, when pile embedded in elastoplastic soil its dependent on soil strength, interface properties and pile rigidity. The pile head displacement is increase about 90 % while the bending moment is decease 10 % at pile head.
Fatigue Study of Ijuk-Aren Interaction on Soil Cement Pavement Model for Elas...AM Publications
This study examines the behavior of fatigue interaction-palm fibers in the soil-cement as an elastic foundation pavement. Experimental behavior in sandy-clay type soil stabilized cement, with 6% and the amount of cement mixed-palm fibers as reinforcement to the number of 0% and 0.50% of the dry weight of the soil. Fatigue with repeated load testing using a UTM-5P / 14P and type testing Confined Repeated Strain Axial Load Test and visual interaction microstructure-palm fibers examined by Scanning Electronic Microscopy (SEM). The test specimen is done at 28 days, the loads are applied: is loading stress = 1500 kPa, confining stress = 100 kPa, loading frequency 1,5Hz. The results obtained showed reinforcement palm-sugar 0.50% increase resilience modulus degradation of 6,50% and microstructural observations indicate cement hydration bind soil particles cover the surface of palm fibers. The results of the other is the interaction of the fibers improve the strength of soil-cement and pavement a long life.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Stegnography of high embedding efficiency by using an extended matrix encodin...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
An experimental study of square footing resting on geo grid reinforced sandeSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
NONLINEAR FINITE ELEMENT ANALYSIS FOR REINFORCED CONCRETE SLABS UNDER PUNCHIN...IAEME Publication
This paper presents an implementation of a three-dimensional nonlinear finite element model for evaluating the behavior of reinforced concrete slabs under centric load. The concrete was idealized by using eight-nodded solid elements. While flexural reinforcement and the shear were modeled as line elements, a perfected bond between solid elements and line elements was assumed. The nonlinear behavior of concrete in compression is simulated by an elasto-plastic work-hardening model, and in tension a suitable post-cracking model based on tension stiffening and shear retention models are employed. The steel was simulated using an elastic-full plastic model. The validity of the theoretical formulations and the program used was verified through comparison with available experimental data, and the agreement has proven to be good. A parametric study has been also carried out to investigate the influence of the slab thickness on column-slab connection response
Finite Element Analysis of Composite Deck Slab Using Perfobond Rib as Shear C...IJERA Editor
Nowadays, the composite decks are very common to use in composite or steel construction. In this case of study
the composite slabs have been investigated numerically by Finite Element Method (FEM). Five composite slabs
were analyzed using finite element software LUSAS. The deflection of each model were obtained and compared
with experimental test. Results showed a good agreement with the experimental data and indicate that the
perfobond rib is appropriate shear connector for the bridges decks.
Optimization of 3 d geometrical soil model for multiple footing resting on sandeSAT Journals
Abstract The study of ultimate bearing capacity (UBC) for a group of two or more footings had been made by investigators for the effect of interference of footings by various means, which is not considered in the conventional theories of bearing capacity. The Finite Element Method (FEM) initiated with 2D/3D modelling is being used for such complex problem. In the present study 3D geometrical soil models were developed and tested with multiple footing on cohesion-less soil using 3D FEM simulation software. This paper highlights optimized 3D geometrical soil model for multiple footing on sand. The meshing parameters, soil model size observed to be influencing the displacement and stresses to great extent. Keywords: FEM, geometrical soil model, interference, multiple footings.
Numerical Analysis of Engineered Steel Fibers as Shear Reinforcement in RC BeamsP singh
Using suitable fibers and additives in concrete to enhance its performance is an important consideration in the concrete industry with regard to the structural aspects of concrete. The purpose of this project is to investigate numerically the effectiveness of the engineered steel fiber as shear reinforcement in RC beams. Here steel fibers completely replaces the shear reinforcement (stirrups & links). The dimension of beam taken was 1000*150*150 mm with aspect ratio 80. The beams were reinforced with 10 mm steel bars as secondary reinforcement and 12 mm bars as main reinforcement on the tension side. Numerical analysis using ANSYS R16.1 software package was carried out. The load-deflection curves for the beams with different dosage of fibers were drawn superimposing their numerical values. Initially, in all three cases the curve was linear elastic and about 80% of ultimate load they tend to be non-linear. It was observed that there was fair agreement between the results which indicates some favourable aspects concerning the use of steel fibres as shear reinforcement in concrete beams. It was investigated that the inclusion of steel fibres (Hook End Type) improves the shear strength of RC beams without stirrups by improving the matrix between concrete and steel fibers. Thus this project focuses in the design and analysis using the software ANSYS R16.1 for an alternative steel reinforcement with better or equivalent performance.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
TRANSIENT ANALYSIS OF PIEZOLAMINATED COMPOSITE PLATES USING HSDTP singh
Piezoelectric materials have excellent sensing and actuating capabilities have made them the most practical smart materials to integrate with laminated structures. Integrated structure system can be called a smart structure because of its ability to perform self-diagnosis and quick adaption to environment changes. An analytical procedure has been developed in the work based on higher order shear deformation theory subjected to electromechanical loading for investigating transient characteristics of smart material plates. For analysis two displacement models are to be considered i.e., model-1 accounts for strain in thickness direction is zero whereas in model-2 in-plane displacements are expanded as cubic functions of the thickness coordinate. Navier’s technique has been adopted for obtaining solutions of anti-symmetric cross–ply and angle-ply laminates of both model-1 and model-2 with simply supported boundary conditions. For obtaining transient response of a laminated composite plate attached with piezoelectric layer Newmark’s method has been used. Effect of thickness coordinate of composite laminated plates attached with piezoelectric layer subjected to electromechanical loadings is studied.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
Theoretical work submitted to the Journal should be original in its motivation or modeling structure. Empirical analysis should be based on a theoretical framework and should be capable of replication. It is expected that all materials required for replication (including computer programs and data sets) should be available upon request to the authors.
Behaviour of mine waste as reinforced soileSAT Journals
Abstract Mining in Goa is done by open cast method, which gives rise to huge quantity of mining waste that occupies space and forms a source for series of problems. The enomerous amount of mine waste dumped around the regions of mining activity need to be reused constructively. Hence, if the mine waste is studied for its use as a reinforced soil, then burning issue of environmental pollution caused by mining dumps lying unprotected and unstabilized can be tackled to a certain extent. Also, it will be a step towards finding an alternative material for cohesionless soil in reinforced soil construction. In this study an attempt is made to check the suitability of soil from one of the mining dumps in Goa to be used as reinforced soil. The mine waste soil samples are studied for its compressive strength and shear strength behaviour by conducting two types of tests, unconfined compressive strength test and triaxial tests on unreinforced and reinforced soil samples. The reinforcement used in the form of a grid made from natural material bamboo. The bamboo grid reinforcement is placed in one, two and three layers, for studying the effect of reinforcement on compressive strength, shear strength parameters, stiffness and modes of failure of mining waste soil. The results of the tests on mining waste show improvement in strength as a reinforced soil mass. Index Terms: Mine waste, bamboo reinforcement, unconfined compression strength and triaxial tests
Experimental and Numerical Assessment of Crash Behavior of Welded Thin Wall R...IDES Editor
The crash behavior of Cold Rolled Mild Steel
(CRMS) closed form thin section produced by stitch welding
at periodic intervals of length was studied by conducting axial
compressive tests at loading velocities of 5 mm/min and 6000
mm/min. The deformation shape, peak forces and energy
absorption capacity of the sections estimated numerically
showed a good correlation with the experimental data.
Fixity depth of offshore piles in elastoplastic soft clay under dynamic loadeSAT Journals
Abstract
This work represents study of dynamic behavior of offshore piles embedded in elastoplastic soft clay, and estimating the fixity depth of pile. ABAQUS finite element program which used to simulate the problem. The soil was modeled in two case elastic state model and elastoplastic state model represented by cam-clay model, three dimension element used to represent the interaction between pile and soil, and laboratory tests used to getting the real properties of clayey soil and to descried interface. The results obtained developed two empirical equations used to calculate depth of pile fixity for pile embedded in elastic and elastoplastic soil respectively. Also, show the depth of pile fixity is increase about (40 %) due to change soil model from elastic to plastic, when pile embedded in elastoplastic soil its dependent on soil strength, interface properties and pile rigidity. The pile head displacement is increase about 90 % while the bending moment is decease 10 % at pile head.
Fatigue Study of Ijuk-Aren Interaction on Soil Cement Pavement Model for Elas...AM Publications
This study examines the behavior of fatigue interaction-palm fibers in the soil-cement as an elastic foundation pavement. Experimental behavior in sandy-clay type soil stabilized cement, with 6% and the amount of cement mixed-palm fibers as reinforcement to the number of 0% and 0.50% of the dry weight of the soil. Fatigue with repeated load testing using a UTM-5P / 14P and type testing Confined Repeated Strain Axial Load Test and visual interaction microstructure-palm fibers examined by Scanning Electronic Microscopy (SEM). The test specimen is done at 28 days, the loads are applied: is loading stress = 1500 kPa, confining stress = 100 kPa, loading frequency 1,5Hz. The results obtained showed reinforcement palm-sugar 0.50% increase resilience modulus degradation of 6,50% and microstructural observations indicate cement hydration bind soil particles cover the surface of palm fibers. The results of the other is the interaction of the fibers improve the strength of soil-cement and pavement a long life.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Stegnography of high embedding efficiency by using an extended matrix encodin...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Mri image registration based segmentation framework for whole hearteSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Comparative review study of security of aran and aodv routing protocols in ma...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Implementation of content based image retrieval using the cfsd algorithmeSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Surveillance and tracking of elephants using vocal spectral informationeSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
A comprehensive review on performance of aodv and dsdv protocol using manhatt...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Design and implementation of autonomous maneuvering robotic vehicle using glo...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
An enhanced adaptive scoring job scheduling algorithm with replication strate...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Influence of reinforcement on the behavior of hollow concrete block masonry p...eSAT Journals
Abstract
Reinforced masonry was developed to exploit the strength potential of masonry and to solve its lack of tensile strength. Experimental
and analytical studies have been carried out to investigate the effect of reinforcement on the behavior of hollow concrete block
masonry prisms under compression and to predict ultimate failure compressive strength. In the numerical program, three dimensional
non-linear finite elements (FE) model based on the micro-modeling approach is developed for both unreinforced and reinforced
masonry prisms using ANSYS (14.5). The proposed FE model uses multi-linear stress-strain relationships to model the non-linear
behavior of hollow concrete block, mortar, and grout. Willam-Warnke’s five parameter failure theory has been adopted to model the
failure of masonry materials. The comparison of the numerical and experimental results indicates that the FE models can successfully
capture the highly nonlinear behavior of the physical specimens and accurately predict their strength and failure mechanisms.
Keywords: Structural masonry, Hollow concrete block prism, grout, Compression failure, Finite element method,
Numerical modeling.
Influence of reinforcement on the behavior of hollow concrete block masonry p...eSAT Journals
Abstract
Reinforced masonry was developed to exploit the strength potential of masonry and to solve its lack of tensile strength. Experimental
and analytical studies have been carried out to investigate the effect of reinforcement on the behavior of hollow concrete block
masonry prisms under compression and to predict ultimate failure compressive strength. In the numerical program, three dimensional
non-linear finite elements (FE) model based on the micro-modeling approach is developed for both unreinforced and reinforced
masonry prisms using ANSYS (14.5). The proposed FE model uses multi-linear stress-strain relationships to model the non-linear
behavior of hollow concrete block, mortar, and grout. Willam-Warnke’s five parameter failure theory has been adopted to model the
failure of masonry materials. The comparison of the numerical and experimental results indicates that the FE models can successfully
capture the highly nonlinear behavior of the physical specimens and accurately predict their strength and failure mechanisms.
Keywords: Structural masonry, Hollow concrete block prism, grout, Compression failure, Finite element method,
Numerical modeling.
Soil structure interaction effect on dynamic behavior of 3 d building frames ...eSAT Journals
Abstract The soil flexibility effect is generally not considered in seismic design of building frames and the design is done based on results of dynamic analysis taking fixed base condition. Flexibility effect of soil causes lengthening of lateral natural period due to overall reduction in lateral stiffness of the structure. Such lengthening lateral natural period (T) may considerably vary the seismic response of building frames resting on raft foundation. Hence it is necessary to unite the flexibility of soil on which the foundation rests during analysis such study being termed as soil structure interaction (SSI). In the present study the dynamic behavior of building frames over raft footing under seismic forces uniting soil structure interaction is considered. The analysis is carried out using FEM software SAP2000 *Ver14. For the interaction analysis of space frame, foundation and soil are considered as parts of a single compatible unit and soil is idealized using the soil models for analysis. The soil system below a raft footing is replaced by providing a true soil model (continuum model). In continuum model, soil is considered as homogeneous, isotropic, elastic of half space for which dynamic shear modulus and Poisson’s ratio are the inputs. Influence of number of parameters such as number of storey’s, soil types and height ratio for seismic zone-V is considered in present study. Building responses are considered for bare frame with and without accounting for soil flexibility. The responses in terms of lateral natural period and seismic base shear, lateral displacement (story drift), with and without soil flexibility is compared to evaluate the contribution of soil flexibility on building frames. Keywords: soil structure interaction, natural period, base shear, max. lateral displacement and raft footing etc…
Finite element analysis of frame with soil structure interactioneSAT Journals
Abstract For the analysis of a building frame, the columns at the foundation level are considered as fixed. But in real condition it is not the case. While considering soil in the analysis of building frame 100% fixity may not be ensured. Because of the settlement and rotation of foundation, shear force and bending moment in superstructure get altered. This effect is called as “Soil Structure Interaction” Present work is to study behavior of bare frame & in-filled frame having soil beneath. In these cases three types of soils are considered, soft, medium stiff and hard. Also in-filled panel is of brick masonry only. Various cases frames are studied. The following are the cases: 1] Analysis of bare frame with soil.2] Analysis of In-filled frame with Soil.3] Analysis of Bare frame without Soil.4] Analysis of In-filled frame without Soil Frame with different combinations mentioned above (with/without infill panel, with/without soil) is analyzed by using ANSYS 14.5. These results are comprised with SSI and without SSI. Keywords: Soil Structure Interaction, In-Filled Frame, Bare Frame.
Abstract The present research work is to determine buckling load per unit length in rectangular plate with circular cut-outs under bi-axial compression using 2D finite element analysis. The commercial finite element analysis software ANSYS has been successfully executed. The buckling factors are evaluated by changing the position of the holes, length to thickness ratio. The effect of changing the position of holes, a/b ratio, b/t ratio and buckling load per unit length is discussed. The results shows that buckling load per unit length is in clamped-clamped boundary conditions and buckling load is more at top positioned hole, decreases with increase in aspect ratio, decrease with increase breadth to thickness ratio. Keywords: Buckling analysis, Finite element method, Buckling load per unit length , carbon/epoxy composite plate, aspect ratio, b/t ratio, and Biaxial load.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Study of behaviour of composite beams with truss type shear connectoreSAT Journals
Abstract
Composite action of two concrete members is achieved by the interface shear transfer between the two members; this mechanism is of great significance. The interface shear carrying capacity is dependent on the surface properties and shear connectors provided. In the current research ATENA is used, it is FEM based software in which the interface properties between materials can be modeled to a great level of detail. In the present study the influence of angle of inclination, size and the depth of embedment of truss connector on the load carrying behavior is studied with the help of a beam model. The angles of inclination varied are 30o, 45o, 60o and 75o with varying bar diameters of 8mm, 10mm and 12mm. Angles between 60o to 75o are found most efficient with no significant changes when diameters are varied. The ultimate load for a given connector is found to be independent of the depth of embedment. Composite beams are also modeled to study the influence of cohesion and friction coefficient, and are compared with behavior of solid and non-composite beams.
Keywords: Truss shear connector, Composite slab, ATENA, Slab flexure test, Interface shear capacity
Analysis of rc frame with and without masonry infill wall with different stif...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Seismic analysis of high damping rubber bearings for base isolationeSAT Journals
Abstract
Base isolation is a mechanism that provides earthquake resistance to the new structure. The base isolation system decouples the building from the horizontal ground motion induced by earthquake, and offers very stiff vertical components to the base level of the superstructure in connection to substructure (foundation). It shifts the fundamental lateral period, dissipates the energy in damping, and reduces the amount of the lateral forces that transferred to the building, inter-story drift, and the floor acceleration.
The work deals with modelling and finite element analysis of a high damping rubber bearing in ANSYS 12.0. A displacement controlled transient analysis was done to analyse the behaviour of the isolator during earthquakes.
Keywords: Base isolation, High damping rubber, Transient analysis
Abstract
Unreinforced masonry in fills has long been known to affect the strength and stiffness of frame. Under the action of a lateral load the
principal compressive diagonal acts as a strut or bracing and increases the initial lateral stiffness of the framed structure. However,
in the presence of openings in walls, which is more practical, the behavior of infill changes. The primary objective of this paper is to
study the variation of lateral stiffness, principal compressive diagonal strut width with modulus of masonry infill, with and without
openings. In the study a non-linear (multi-linear) analysis is performed, since it is more realistic. From the analysis performed using
ANSYS Version 10.0 it is seen that linear analysis over-estimates the lateral stiffness of the infill frame. Further, it is observed that the
width of compressive diagonal generally decreases with increase in the modulus of masonry. It is also seen that incase of two frames
with equal area of openings, the frame with larger width of opening exhibits slightly more initial lateral stiffness due to possibility of
formation of single diagonal strut.
Key words: Infill frame, principal compressive diagonal, initial lateral stiffness, equivalent strut width, multi-linear
analysis.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
FINITE ELEMENT ANALYSIS OF UNDERGROUND METRO TUNNELSIAEME Publication
With buildings roads and railways occupying most spaces in cities, there is a constant increase in traffic congestion and pollution. An underground express-way/metro tunnel below such central business districts serves as an effective sustainable option. Along with longer service life, they can optimize the energy usage, minimize CO2 emissions, reduce carbon footprint and thus coexist as an integral part of a sustainable infrastructure system. In this paper, we address the challenge of analyzing one such Underground metro tunnel in Bangalore. The paper high lights the elastic and
elasto-plastic analysis of the twin tunnel system subjected to gravity, hydrostatic pressure conditions combined with blast induced pressures.
Numerical modeling on behaviour of reinforced concrete exterior beam column j...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Finite element analysis of frame with soil structure interactioneSAT Journals
Abstract
For the analysis of a building frame, the columns at the foundation level are considered as fixed. But in real condition it is not the case. While considering soil in the analysis of building frame 100% fixity may not be ensured. Because of the settlement and rotation of foundation, shear force and bending moment in superstructure get altered. This effect is called as “Soil Structure Interaction” Present work is to study behavior of bare frame & in-filled frame having soil beneath. In these cases three types of soils are considered, soft, medium stiff and hard. Also in-filled panel is of brick masonry only. Various cases frames are studied. The following are the cases:
1] Analysis of bare frame with soil.2] Analysis of In-filled frame with Soil.3] Analysis of Bare frame without Soil.4] Analysis of In-filled frame without Soil Frame with different combinations mentioned above (with/without infill panel, with/without soil) is analyzed by using ANSYS 14.5. These results are comprised with SSI and without SSI.
Keywords: Soil Structure Interaction, In-Filled Frame, Bare Frame.
Modelling of Permanent Deformation on Flexible Pavement Using Accelerated Pav...IOSR Journals
Abstract: The two major distresses encountered on flexible pavement under Indian conditions are fracture
(cracking) and longitudinal permanent deformation (rutting) which affects the serviceability of pavement.
Accelerated Pavement Testing Facility (APTF) is a tool which is a vital link for testing and measuring full-scale
field behaviour of cracking and rutting of pavement at in-situ conditions. Recently, CSIR-Central Road
Research Institute (CRRI) in India has procured a linear Heavy Vehicle Simulator (HVS) type of APTF which is
presently being used for finding out the cracking and rutting behaviour of a flexible pavement consisting Dense
Bituminous Concrete (DBC) as wearing course and Dense Bituminous Macadam (DBM) as binder course apart
from the conventional granular layers above sub-grade.
The present paper deals with the development of a statistical model and its approach for pavement
rutting under numerous passes (bi-directional) for the layer specifications which are (i) 40 mm DBC (ii) 120
mm DBM (iii) 250 mm Wet Mix Macadam (WMM) and (iv) 300 mm Granular Sub-base (GSB) above the Subgrade,
which is an Indian Specification widely used for 30 Million Standard Axles (MSA) at 5% CBR. The
statistical model has been developed by observing / recording pavement surface profile using Laser
Profilometer (off board) for every 5,000 passes upto 50,000 passes, thereafter at every 10,000 passes upto
175,000 passes and then at every 25,000 passes upto 275,000 passes. The details of methodology adopted, load
applied, temperature and material properties have also been given in the paper.
Keywords: Flexible pavement, Rutting, Accelerated Pavement Testing Facility,Modelling,Profilometer
Similar to Numerical study of behavior of square footing on geogrid reinforced flyash beds under static loading (20)
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
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Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
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Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Numerical study of behavior of square footing on geogrid reinforced flyash beds under static loading
1. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
__________________________________________________________________________________________
Volume: 03 Special Issue: 06 | May-2014 | RRDCE - 2014, Available @ http://www.ijret.org 82
NUMERICAL STUDY OF BEHAVIOR OF SQUARE FOOTING ON
GEOGRID-REINFORCED FLYASH BEDS UNDER STATIC LOADING
Bindiya K1
, S. Gangadhara2
, H. C. Muddaraju3
, Tejaswini B. R4
1
Assistant Professor, Civil Engineering Department, JNNCE, Shivamogga, Karnataka, India
2
Associate Professor, Civil Engineering Department, UVCE, Bangalore, Karnataka, India
3
Assistant Professor, Civil Engineering Department, UVCE, Bangalore, Karnataka, India
4
Assistant Professor, Civil Engineering Department, SVCE, Bangalore, Karnataka, India
Abstract
The technique of ground improvement using geosynthetics has been developed extensively over the last few decades, in particular to
those applied in pavement and foundation engineering. Fly ash is a naturally-cementations coal combustion by-product. Coal-based
thermal power plants all over the world face serious problems of handling and disposal of the ash produced. Hence attempts are
being made to utilize the ash rather than dump it. The main objective of this research study is to investigate the potential benefits of
using the reinforced soil foundations to improve the load carrying capacity and reduce the settlement of shallow foundations on
flyash. Numerical modelling is performed using PLAXIS version 8.2 which is finite element code for soil and rock analysis and is
capable of modelling reinforced soils. A series of finite element analysis were performed to study the effectiveness of the reinforcement
distribution (i.e, number of reinforcement layers and the spacing between the reinforcement layers) on the behaviour of the square
footing on flyash beds. The dimensions of the tank used in analysis are 11m diameter and 3.6m height. The mild steel footing is used
with the dimensions of 1m width and 0.04 m thickness respectively. The loading condition used for the present study is Point load.
The input values of point loads are given in force per unit width (kN/m). The static loads are applied up to 50mm settlement. The
analysis demonstrates that the reinforced flyash beds perform better than the unreinforced flyash beds. The performance of footing
improves with increase in number of reinforcement layers. As the spacing between the reinforcement increases settlement will
reduces.
Keywords: Reinforced fly ash beds, numerical modeling, PLAXIS, Point load.
----------------------------------------------------------------------***------------------------------------------------------------------------
1. INTRODUCTION
The technique of ground improvement using geosynthetics has
been developed extensively over the last few decades, in
particular to those applied in pavement and foundation
engineering. The concept of reinforced soil as construction
material is based on the existence of soil-reinforcement
interaction due to tensile strength, frictional and the adhesion
properties of the reinforcement and was first introduced by the
French architect and engineer Henri Vidal in the 1960s. Since
then, this technique has been widely used in geotechnical
engineering practice.
Studies have shown that geogrid reinforced foundations can
increase the ultimate bearing capacity and reduce the
settlement of shallow footings, compared to the conventional
methods, such as to replacing natural soils or increasing
footing dimensions.(e.g. King et al. 1993; Mosallanezhad et al.
2010; Gill et al. 2011; Zidan 2012; Nagy et al. 2012;
Gangadara et al. 2013)
Fly ash is a naturally-cementations coal combustion by-
product. Coal-based thermal power plants all over the world
face serious problems of handling and disposal of the ash
produced. Safe disposal of the ash without adversely affecting
the environment and the large storage area required are major
concerns. Hence attempts are being made to utilize the ash
rather than dump it. This solves the problems associated with
the disposal of fly ash. According to two dimensional finite
element analysis on reinforced fly ash slope carried by Gill et
al.(2011) fly ash can be used successfully as an embankment
fill material.
Analyses have been made to obtain the behavior of square
footing on geogrid-reinforced flyash beds under static loading.
Most of the studies have been done on reinforced sand under
both static and dynamic loads. Hence analysis is made to study
the effectiveness of the reinforcement distribution (number of
reinforcement layers and spacing between the reinforcement
layers) on the behaviour of the square footing on flyash beds.
2. NUMERICAL MODELING
Numerical models in this study were made using the finite
element program called PLAXIS version 8.2 which is finite
element code for soil and rock analysis and is capable of
2. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
__________________________________________________________________________________________
Volume: 03 Special Issue: 06 | May-2014 | RRDCE - 2014, Available @ http://www.ijret.org 83
modelling reinforced soils. The analysis is carried out by
considering square shaped footing on flyash beds. In the
analysis unreinforced and reinforced flyash beds are
considered in order to check their effectiveness.
Plane strain model is used in the present case since footing are
square in shape and in this model, deformation and stress state
are assumed to be zero in Z directions. The 15-node triangle is
considered as very accurate element as it produces high
quality stress results for difficult problems. Hence 15 node
triangular elements were used for the analysis. The geometry
model of specified dimensions i.e. a tank of 11 m diameter and
3.6m height is created using Line option in the PLAXIS
window. Figure 1 shows the Finite element mesh of geometry
around footing with geogrid.
Fig -1: Finite element mesh.
The Mohr-Coulomb model is used for assigning flyash
properties. The type of material used for footing is mild steel.
Table 1 and Table 2 presents the properties of flyash and
footing used in analysis. The biaxial geogrid are used as
reinforcing material. The distance of geogrid is 10m with
0.5m clearence between tank and geogrid on both sides. The
properties of geogrid used for analysis are shown in Table 3.
Geogrids can be activated or de-activated in calculation phases
using staged construction as loading input. The boundary
condition used for present analysis is Standard fixities.
PLAXIS contains the options to introduce distributed loads,
line loads or point loads and prescribed displacements in the
geometry model. The loading condition used for the present
study is Point load. The input values of point loads are given
in force per unit width (kN/m). The static loads are applied up
to 50mm settlement. Figure 2 shows the deformed mesh after
analysis.
Fig -2: Deformed mesh after analysis.
Table 1: Properties of flyash
Table 2: Properties of footing
Table 3: Properties of geogrids
PARAMETERS VALUES
1. Axial Stiffness (EA) 14.38*106
kN/m
3. RESULTS AND DISCUSSION
A series of finite element analysis were performed to study the
effectiveness of the reinforcement distribution on the
behaviour of the square footing on flyash beds. Zidan (2012)
conducted a series of axi-symmetry models using finite
element analyses (PLAXIS 2-DV8.2). The influence of
geogrid becomes negligible when the ratio of depth of first
layer to the footing diameter is equal to 0.5. Hence a minimum
spacing between the reinforcement layers is 0.3 times the
width of footing is used in the analysis as this minimum
thickness of the flyash bed is necessary for the reinforcement
PARAMETERS VALUES
1. Unsaturated Unit Weight 14.37 kN/m3
2. Saturated Unit Weight 15.28 kN/m3
3. Permeability 0
4. Reference Young’s Modulus 1202 kN/m2
5. Poisson’s Ratio 0.2
6. Cohesion 40 kN/m2
7. Friction Angle 27◦
8. Dilatancy Angle 0◦
9. Interface Strength 0.8
PARAMETERS VALUES
1. Axial Stiffness (EA) 8.4*106
kN/m
2. Flexural Rigidity (EI) 1120 kN-m2
/m
3.Equivalent Plate Thickness 0.04 m
4. Poisson’s Ratio 0.3
5. Specific Weight 3.14 kN/m/m
Footing
Geogrid
Flyash
11m
3.6m
3. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
__________________________________________________________________________________________
Volume: 03 Special Issue: 06 | May-2014 | RRDCE - 2014, Available @ http://www.ijret.org 84
action. Also the first layer of reinforcement is placed at a
minimum depth of 0.3times the width of footing, as this
minimum thickness becomes essential for confinement effect.
3.1 Effect of Number of Reinforcement Layers
Figure 3, 4 and 5 presents the load v/s settlement curves for
square footing resting on unreinforced and reinforced flyash
beds with two, three and four layers of reinforcement at
S=0.3B, 0.4B and 0.5B respectively. It is observed from the
figures that as the number of reinforcement layers increases
the settlement reduces at any loading magnitude. For example,
from the figure 3, the footing on unreinforced flyash bed
experiences a settlement of 31.15mm at a loading magnitude
of 50kN/m, whereas footing on reinforced flyash beds with
two, three and four layers experiences the settlement of
19.54mm, 18.94mm and 16.5mm at the same loading
magnitude of 50kN/m respectively. This indicates that the
performance of reinforced flyash bed is better than
unreinforced flyash bed. In reinforced flyash bed, as the
number of reinforcement layers increases settlement will be
less for the same loading compared to its counterparts.
Fig- 3: Effect of number of reinforcement layers on the
performance of square footing resting on flyash beds under
static load and S=0.3B.
Fig- 4: Effect of number of reinforcement layers on the
performance of square footing resting on flyash beds under a
static load and S=0.4B.
Fig- 5: Effect of number of reinforcement layers on the
performance of square footing resting on flyash beds under a
static load and S=0.5B.
3.2 Effect of Reinforcement Spacing
Figure 6, 7 and 8 presents the load v/s settlement curves for
square footing resting on two, three and four layer reinforced
flyash beds with spacing of 0.3B, 0.4B and 0.5B respectively.
It is observed from the figures that as the spacing between the
reinforcement layers increases the settlement reduces at any
loading magnitude. For example, from the figure 6, the footing
on flyash bed having reinforcement at S=0.5B experiences a
settlement of 16.41mm at a loading magnitude of 40kN/m,
whereas footing on flyash bed having reinforcement at S=0.4B
and S=0.3B experiences the settlement of 16.94mm and
17.57mm at the same loading magnitude of 40kN/m
respectively. This indicates as the spacing between the
reinforcement increases settlement will be less for same
loading magnitude.
Fig- 6: Effect of reinforcement spacing on the performance of
square footing resting on two layer reinforced flyash beds
under a static load.
4. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
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Volume: 03 Special Issue: 06 | May-2014 | RRDCE - 2014, Available @ http://www.ijret.org 85
Fig- 7: Effect of reinforcement spacing on the performance of
square footing resting on three layer reinforced flyash beds
under a static load.
Fig- 8: Effect of reinforcement spacing on the performance of
square footing resting on four layer reinforced flyash beds
under a static load.
4. CONCLUSIONS
The following conclusions are drawn from the numerical
analysis
1. Square footing resting on reinforced flyash bed
perform better than its counterpart resting on
unreinforced flyash beds.
2. As the number of reinforcement layer increases the
performance of footing increases by taking more load
and undergoing less settlement than its counterpart
resting on reinforced flyash beds.
3. As the spacing between the reinforcement layer
increases the performance of footing increases by
taking more load and undergoing less settlement than
its counterpart resting on reinforced flyash beds.
REFERENCES
[1]. Gangadara S. and Muddaraju H.C (2013) Effect of
reinforcement Spacing on the Performance of
Embedded Circular Footing in Reinforced Fly Ash,
International Conference on Innovations In Civil
Engineering.
[2]. Gill, K.S, Choudhary, A.K, Jha, J.N, and Shukla, S.K
(2011) Load Bearing Capacity of Footing Resting on a
Multilayer Reinforced Fly Ash Slope. Indian
Geotechnical Conference 2011: pp. 4262-4271.
[3]. Khing, K.H., Das, B.M., Puri, V.K., Cook, E.E. and
Yen, S.C. (1993) The bearing capacity of a strip
foundation on geogrid-reinforced sand. Geotextiles and
Geomembranes, 12(4), 351-361.
[4]. Mosallanezhad M, Hataf N. and Ghahramani A, 2010.
Three Dimensional Bearing Capacity Analysis Of
Granular Soil, Reinforced With Innovative Grid-
Anchore System. Iranian Journal of Science and
Technology 34:419-431.
[5]. Nagy A. El Mahallawy and Ahmad S. Rashed. (2012)
Experimental Study for the Behaviour of Footings on
Reinforced Sand Beds Overlying Soft Clay Zone,
Journal of American Science, 8(1).
[6]. Plaxies Version 8.2,(2002) Materials models manual.
[7]. Zidan A. F. (2012) Numerical Study of Behavior of
Circular Footing on Geogrid-Reinforced Sand Under
Static and Dynamic Loading, Geotech Geol Eng
30:499–510.
BIOGRAPHIES
Assistant Professor in JNNCE, Shimoga. ME
(Geo Technical Engineering), UVCE,
Bangalore. BE (Civil Engineering), JNNCE,
Shimoga
Associate Professor Dept of Civil
Engineering UVCE, Bangalore University,
Bangalore.56
Assistant Professor Dept of Civil Engineering
UVCE, Bangalore University,Bangalore.56,
Assistant Professor in Sri Venkateshwara
College of Engineering, Bangalore. ME (Geo
Technical Engineering), UVCE, Bangalore.
BE (Civil Engineering), Dr. AIT, Bangalore