The document summarizes an experimental study and analysis of cold-formed steel channel sections under axial, biaxial, and eccentric compression loading. Sections were tested experimentally and analyzed using finite element modeling in ABAQUS software. Key findings include that cold-formed steel sections have higher yield strengths than comparable hot-rolled sections due to work hardening during forming. Cold-formed sections also use material more efficiently and can be manufactured in a variety of shapes and sizes. Finite element models were created to validate experimental results and study failure modes.
Flexural behaviour of light gauge cold formed steel members comparison of i...eSAT Journals
Abstract Light – gauge steel evolved as a building material in the 1930’s and reached large scale usage only after the Second World War. In comparison with conventional steel construction, where standard hot rolled shapes are used, the cold formed light gauge steel structures are relatively new development. This paper presents a study on behaviour and economical of cold formed steel (CFS) built up channel section using different codes. This paper provides an experimental investigation for the bending strength of Cold – Formed light gauge steel plain (stiffened) rectangular sections. The test specimens were brake pressed from high strength structural steel sheets. In addition, the test strengths were compared with the design strengths calculated using the Indian Standard and Euro codes Specification for Cold –Formed steel structures. Flexural members are linear members in which axial forces act to cause elongation (stretch). The theoretical data are calculated using Indian Standard code IS 801-1975 and the section properties of the specimens are obtained using IS 811-1975. The specimens are designed under uniformly distributed loading with simply supported condition. The research project aims to provide which code of practice given more economical, high bending strength, more load carrying capacity and high flexural strength. The studies reveal that the theoretical investigations limit state methods (SI method) have high bending strength, high load caring capacity, maximum deflection and minimum local buckling& distortional buckling compare to the other codes. Keywords: Cold formed steel, built up channel section, limit state method, working stress method, bending strength, deflection
IRJET- A Study on the Behavior of Cold-Formed Steelsections Beam Column Conne...IRJET Journal
1) The document presents a study on the behavior of cold-formed steel beam-column connections using finite element analysis and experimental testing.
2) Both I-section and channel section beams were connected to matching column sections via welded joints, with connections to both the flange and web.
3) The finite element analysis found that connections to the web of both section types had a higher load capacity than connections to the flange. Experimental testing confirmed this trend.
4) Both analytical and experimental results showed I-section connections could withstand over 30% higher loads than comparable channel section connections.
IRJET- Study on the Behaviour of Cold Formed Steel Frames Hollow SectionIRJET Journal
This document summarizes a study on the behavior of cold formed steel frames made using hollow channel sections. Two specimens of single bayed-two storey cold formed steel frames of 3mm thickness were tested under concentrated loading along both the major and minor axes. The frames connected along the major axis exhibited 38% higher load carrying capacity than those connected along the minor axis. Material properties of the steel sheets used were obtained through tensile coupon tests. Previous studies on buckling behavior of cold formed steel sections and behavior of connections under loading were also reviewed to inform the experimental investigation.
IRJET- Beam-Column Connections in Cold-Formed Light Gauge Steel StructuresIRJET Journal
1) The document discusses beam-column connections in cold-formed light gauge steel structures. It aims to increase the use of cold-formed steel in structures by studying different connection configurations.
2) Four connection models are analyzed experimentally and through finite element analysis: connections with 1mm and 2mm thick beam-column connectors with and without angle sections, connected with self-tapping screws.
3) The experimental analysis involves fabricating the connection models and testing them under a cantilever loading arrangement to determine load-carrying capacity. Finite element analysis is also conducted using CATIA, HYPERMESH and ANSYS software.
Finite Element Analysis of Cold-formed Steel ConnectionsCSCJournals
This paper presents a thorough investigation into the structural performance of cold-formed steel column base and beam column connections using single lipped C sections with bolted moment connections. Two specimens consisting of a column base and a beam column connection were carried out, and it was found that section failure under flexural buckling was always critical. Moreover, the proposed connections were demonstrated to be structurally efficient attaining moment resistances close to those of the connected sections. In order to examine the structural behavior of the column base and beam column connections, finite element models were established using shell and bar elements to model the sections and the bolted fastenings respectively. Material non-linearity was incorporated, and comparison between the test and the numerical results was presented in details. It was shown that the proposed analysis method was structurally adequate to predict the structural behavior for column base and beam column with similar connection configurations.
Theoretical study of axially compressed Cold Formed Steel SectionsIJASCSE
Conceptual and finite element analysis oriented design of cold formed steel columns are presented in this paper. Total four 1 meter channel lipped section with thickness of 1, 1.2, 1.5 and 1.9 are tested. All columns were tested under a pure axial load, Conceptual design results are compared with finite element analysis for axially loaded compression members. The results provide useful information regarding allowable load estimation of cold formed steel column section. Based on the results, design recommendations were proposed. The proposed design approach is recommended for the design of complex shape of cold formed steel section, where design rules are not available in standards.
This document outlines a student project investigating cold-formed steel connections. The project will study bolted and welded connections using various steel sections to determine their strength and structural performance. A literature review has been conducted on previous experimental studies of bolted moment connections in cold-formed steel frames. The objective is to find the most accurate and efficient method for analyzing connection loads and strengths. The project schedule outlines tasks over several months, including modeling connections in software, manual calculations, validation of results, and thesis writing.
Steel Reinforcement Facts Every Civil Engineer Must KnowSHAZEBALIKHAN1
Steel is the core building material and finds numerous uses in construction.
Learn about the 6 facts about steel reinforcement. Why do we use steel reinforcement? Types of steel reinforcement. Grade of steel. Positive and negative reinforcement. The cover requirement of steel. And nominal steel requirement of structures.
Flexural behaviour of light gauge cold formed steel members comparison of i...eSAT Journals
Abstract Light – gauge steel evolved as a building material in the 1930’s and reached large scale usage only after the Second World War. In comparison with conventional steel construction, where standard hot rolled shapes are used, the cold formed light gauge steel structures are relatively new development. This paper presents a study on behaviour and economical of cold formed steel (CFS) built up channel section using different codes. This paper provides an experimental investigation for the bending strength of Cold – Formed light gauge steel plain (stiffened) rectangular sections. The test specimens were brake pressed from high strength structural steel sheets. In addition, the test strengths were compared with the design strengths calculated using the Indian Standard and Euro codes Specification for Cold –Formed steel structures. Flexural members are linear members in which axial forces act to cause elongation (stretch). The theoretical data are calculated using Indian Standard code IS 801-1975 and the section properties of the specimens are obtained using IS 811-1975. The specimens are designed under uniformly distributed loading with simply supported condition. The research project aims to provide which code of practice given more economical, high bending strength, more load carrying capacity and high flexural strength. The studies reveal that the theoretical investigations limit state methods (SI method) have high bending strength, high load caring capacity, maximum deflection and minimum local buckling& distortional buckling compare to the other codes. Keywords: Cold formed steel, built up channel section, limit state method, working stress method, bending strength, deflection
IRJET- A Study on the Behavior of Cold-Formed Steelsections Beam Column Conne...IRJET Journal
1) The document presents a study on the behavior of cold-formed steel beam-column connections using finite element analysis and experimental testing.
2) Both I-section and channel section beams were connected to matching column sections via welded joints, with connections to both the flange and web.
3) The finite element analysis found that connections to the web of both section types had a higher load capacity than connections to the flange. Experimental testing confirmed this trend.
4) Both analytical and experimental results showed I-section connections could withstand over 30% higher loads than comparable channel section connections.
IRJET- Study on the Behaviour of Cold Formed Steel Frames Hollow SectionIRJET Journal
This document summarizes a study on the behavior of cold formed steel frames made using hollow channel sections. Two specimens of single bayed-two storey cold formed steel frames of 3mm thickness were tested under concentrated loading along both the major and minor axes. The frames connected along the major axis exhibited 38% higher load carrying capacity than those connected along the minor axis. Material properties of the steel sheets used were obtained through tensile coupon tests. Previous studies on buckling behavior of cold formed steel sections and behavior of connections under loading were also reviewed to inform the experimental investigation.
IRJET- Beam-Column Connections in Cold-Formed Light Gauge Steel StructuresIRJET Journal
1) The document discusses beam-column connections in cold-formed light gauge steel structures. It aims to increase the use of cold-formed steel in structures by studying different connection configurations.
2) Four connection models are analyzed experimentally and through finite element analysis: connections with 1mm and 2mm thick beam-column connectors with and without angle sections, connected with self-tapping screws.
3) The experimental analysis involves fabricating the connection models and testing them under a cantilever loading arrangement to determine load-carrying capacity. Finite element analysis is also conducted using CATIA, HYPERMESH and ANSYS software.
Finite Element Analysis of Cold-formed Steel ConnectionsCSCJournals
This paper presents a thorough investigation into the structural performance of cold-formed steel column base and beam column connections using single lipped C sections with bolted moment connections. Two specimens consisting of a column base and a beam column connection were carried out, and it was found that section failure under flexural buckling was always critical. Moreover, the proposed connections were demonstrated to be structurally efficient attaining moment resistances close to those of the connected sections. In order to examine the structural behavior of the column base and beam column connections, finite element models were established using shell and bar elements to model the sections and the bolted fastenings respectively. Material non-linearity was incorporated, and comparison between the test and the numerical results was presented in details. It was shown that the proposed analysis method was structurally adequate to predict the structural behavior for column base and beam column with similar connection configurations.
Theoretical study of axially compressed Cold Formed Steel SectionsIJASCSE
Conceptual and finite element analysis oriented design of cold formed steel columns are presented in this paper. Total four 1 meter channel lipped section with thickness of 1, 1.2, 1.5 and 1.9 are tested. All columns were tested under a pure axial load, Conceptual design results are compared with finite element analysis for axially loaded compression members. The results provide useful information regarding allowable load estimation of cold formed steel column section. Based on the results, design recommendations were proposed. The proposed design approach is recommended for the design of complex shape of cold formed steel section, where design rules are not available in standards.
This document outlines a student project investigating cold-formed steel connections. The project will study bolted and welded connections using various steel sections to determine their strength and structural performance. A literature review has been conducted on previous experimental studies of bolted moment connections in cold-formed steel frames. The objective is to find the most accurate and efficient method for analyzing connection loads and strengths. The project schedule outlines tasks over several months, including modeling connections in software, manual calculations, validation of results, and thesis writing.
Steel Reinforcement Facts Every Civil Engineer Must KnowSHAZEBALIKHAN1
Steel is the core building material and finds numerous uses in construction.
Learn about the 6 facts about steel reinforcement. Why do we use steel reinforcement? Types of steel reinforcement. Grade of steel. Positive and negative reinforcement. The cover requirement of steel. And nominal steel requirement of structures.
Cold-Formed-Steel Design And Construction ( Steel Structure )Hossam Shafiq I
This document discusses the history and development of cold-formed steel structural shapes. It begins by describing how Henry Cort introduced sheet rolling mills in 1784, leading to the first use of corrugated steel sheets for building materials. Continuous hot-rolling mills developed by John Tytus in 1923 enabled the modern steel fabricating industry using coiled strip steel. The document then discusses how cold-formed steel shapes are made through bending sheet or strip steel using roll-forming machines, press brakes, or bending brakes. It provides examples of common cold-formed steel products like door and window frames. The key principles in designing with cold-formed steel include preventing local buckling in thin, wide elements and accounting for shear lag and
This document discusses light gauge steel (LGS), including its concept, manufacturing process, structural behavior, uses in framing, and construction methods. LGS is a thin sheet steel that is roll or brake formed into cross-sectional shapes. Compared to hot rolled steel, LGS is lighter but stronger. Its thin width-to-thickness ratio means it is susceptible to local buckling under compression loads. LGS framing uses C-sections for studs, joists, and beams. Construction involves erecting LGS wall panels, installing floor and roof joists, and finishing with cladding and insulation.
a small presentation about machinability and Al machinability
containing:
Definition of Machinability
Machinability of Aluminum Alloys
How to improve the mach inability of Al alloy?
Cutting force during machining of aluminum alloys
Chip formation and chip segmentation
Surface of Machined Aluminium Alloys
MACHINABILITY RATINGS
IRJET- Analysis of Steel Silos Subjected to Wind Load with Various Slendernes...IRJET Journal
This document analyzes the structural behavior of circular thin-walled steel silos subjected to wind load with various slenderness ratios. Three finite element models of steel silos were created in SAP2000 with different height-to-diameter ratios (slenderness ratios): slender (4.2), intermediate (2.46), and squat (1.6). The models were analyzed under empty and full conditions to determine shell stresses and deformations. Results showed that deformation was highest for the slender silo when empty, but hoop stresses were highest for the squat silo when full. The analysis provides useful information for designing steel silos to withstand wind loads.
This document discusses steel framing systems, including cold-formed structures and composite floor slabs. Cold-formed structures use vertical steel columns and horizontal I-beams to form a skeleton frame, providing design flexibility. Composite floor slabs combine a steel deck with a concrete topping for strength and versatility. Case studies show that steel framing allows for faster construction times and cost savings compared to other materials.
TMT steel bars, also known as reinforcement bars or rebars, are the most important component of reinforced cement concrete structures like homes. The document provides a guide for selecting the right TMT bars, including an overview of the material and its usage. It describes the different types of TMT bars by grade, size, and material (primary vs secondary steel). It also offers tips for checking the quality and quantity of bars received, and proper storage practices.
IRJET- Buckling Behaviour of Cold Formed Steel SectionsIRJET Journal
This document summarizes a research paper that analyzes the buckling behavior of cold-formed steel sections using numerical modeling. It introduces cold-formed steel, its manufacturing process, and failure modes related to buckling. It then describes modeling 5 channel section geometries with and without lips in CUFSM software under simply supported conditions. The results show that distortional buckling only occurred when lips were present, and its effect varied based on the lip position. In conclusion, CUFSM was found to be a reliable free software to analyze buckling behavior of columns through the finite strip method.
Revision of Industry Residence with Two Different Materials Considering Const...ijtsrd
In our study we are performing analysis of such structure considering material other that General steel hot rolled . In this study we are analyzing the same structure with same loading conditions using Cold formed steel structure. In this study we are comparing both the structures for lateral pressure using analysis tool Staad.pro which is advance analysis tool with optimization option for cost effective design. Comparative analysis was done while creating a structure using Hot rolled Steel sections and Cold Formed Steel CFS and results were presented on Shear Force, Axial Force, Support Reaction, Node Deflection and Cost analysis where Cold formed Steel was found durable in every case. Amit Kumar Tiwari | Abay Kumar Jha | Rohit jain "Revision of Industry Residence with Two Different Materials Considering Construction Framework using Staad.Pro" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-6 , October 2020, URL: https://www.ijtsrd.com/papers/ijtsrd33417.pdf Paper Url: https://www.ijtsrd.com/engineering/civil-engineering/33417/revision-of-industry-residence-with-two-different-materials-considering-construction-framework-using-staadpro/amit-kumar-tiwari
Our project is all about machinability of aluminium and its alloys from adding Lead (Pb) and Bismuth (Bi) to the great effect of Si Content on machinability as cutting forces , power and surface finish..........thank you for your time. ( Group 36 )
Different rolled steel bars and sectionsskytechmetals
Rolled steel sections are available in various forms for use in Steel Construction. Shapes, sizes, and properties of these rolled steel sections, Different steel members are manufactured in the factories based their usage
This document provides a draft revision to the Indian Standard specification for hot rolled medium and high tensile structural steel. Some key changes in the revision include:
1) The title has been modified and the word 'low' has been deleted to reflect the grades of steel covered.
2) Nine grades of steel are now specified, with some grades having two to four sub-qualities indicating impact test requirements and deoxidation method.
3) The manufacturing clause has been modified to allow for different steelmaking and rolling practices.
4) Requirements have been aligned with international standards like EN and ASTM to make the Indian standard more comparable globally.
This document discusses welding as a joining process. It defines welding as joining two parts by applying heat and/or pressure to coalesce their surfaces. There are two main categories of welding: fusion welding, where parts are joined by melting, and solid state welding, where parts are joined below melting temperature using pressure. The document outlines different types of welds (e.g. fillet, groove) and weld joints (e.g. butt, lap). It also discusses the physics of welding, including concepts like power density, heat transfer efficiency, and the energy required to melt materials. Automation in welding is mentioned as a way to improve safety, productivity and quality.
Steel is an alloy of iron and carbon that is strong, tough, ductile, and durable. It exists in many forms for construction including carbon steels, alloy steels, and stainless steels. Steel has important physical properties like strength and toughness as well as chemical properties like density and thermal conductivity. Mechanical properties are also critical and determine the load steel can withstand. Notch toughness refers to a steel's ability to resist crack propagation which is important for durability. In buildings, steel is used for reinforcement cages in concrete, as well as foundations, beams, girders, and the structural frame.
Numerical simulation of friction stir butt welding processes for az91 magnesi...eSAT Publishing House
This document describes a numerical simulation of friction stir butt welding for AZ91 magnesium alloy. A 3D nonlinear thermo-mechanical finite element model was developed using ABAQUS to predict temperature distribution and evaluate mechanical properties during the welding process. The model considers heat generation due to friction between the rotating tool and workpiece. Results show the maximum temperature reached was 483°C and residual stress was highest along the weld path. Pressure was also highest in the weld midpoint. Graphs of internal energy and strain energy over time were produced from the simulation results.
Numerical simulation of friction stir butt welding processes for az91 magnesi...eSAT Journals
Abstract Friction Stir Welding (FSW) is a solid state welding process. In particular, it can be used to join high-strength aerospace magnesium and other metallic alloys that are hard to weld by conventional fusion welding. It was performed on 4 mm thickness AZ91 Magnesium alloy. Magnesium alloy have more advantage than aluminum such as light weight, softer, tendency to bend easily, cost effective in terms of energy requirements so magnesium alloy has selected in this FSW technique. In friction stir welding (FSW), a momentous residual stress is present in weld due to complex nature of fixturing system compared to fusion welding. These residual stresses can affect properties of welded components during service. Therefore, for estimating magnitude of welding residual stresses and their nature of distribution along with thermal history, a three dimensional non- linear thermo-mechanical finite element (NLTMFE) model using ABAQUS/ CAE package was developed for butt welded magnesium alloy AZ91. The objective of this work is to predict the temperature distribution in both materials and evaluate the mechanical properties during the friction stir welding on magnesium alloy. Keywords: Fsw, Nltmfe, Abaqus, Cae, Az91.
Structural steel framing uses a system of steel beams and columns to form the vertical and horizontal frame of low, mid, and high-rise buildings. It is a durable, cost-effective, and sustainable construction material. Ironworkers are needed to erect the steel frames, especially for tall buildings like skyscrapers, while site managers oversee construction activities and coordinate workers and deliveries.
This publication provides worked examples for the design of structural elements in a notional steel framed building according to Eurocode standards. It includes an overview of the Eurocode system and conventions used, and introduces relevant content from Eurocode standards for steel, composite steel and concrete, and concrete structures. The worked examples apply the parameter values and design options specified in the UK National Annexes. They were produced with input from structural design lecturers and are intended to help both students and practicing designers learn Eurocode design methods.
The document discusses specifications for anchor rods, base plates, and embedded plates according to various ASTM material standards and AISC provisions. It addresses questions regarding acceptable material specifications and configurations for anchor rods, preferred hole sizes in base plates, requirements for washers, acceptable methods for extending short anchor rods or welding rods to base plates, and considerations for accounting for base plate distortion and providing grout holes. Acceptable threads can be rolled, cut, or ground. Anchor rods should not be welded to base plates if intended to provide erection stability. Hooked rods are not recommended for uplift resistance.
Steel structures are made from combinations of structural steel members designed to carry loads and provide rigidity. Common steel structures include buildings, bridges, and towers. Steel comes in various grades depending on carbon content, including low carbon steel (mild steel), medium carbon steel, and high carbon steel. Steel structures offer advantages like strength, light weight, and ease of fabrication but require maintenance to prevent corrosion. Common steel sections used in construction include I-beams, channels, angles, and hollow sections. Connections between steel members can be welded, bolted, or riveted.
“Review on Finite Elemental Analysis of Industrial Mid Rise Building Using Co...IRJET Journal
This document summarizes a research paper that analyzes the finite element analysis of an industrial mid-rise building using cold-formed steel. It begins with an abstract that outlines analyzing cold-formed steel sections using software like STADD Pro. It then reviews literature on analyzing cold-formed steel structures for seismic loading and buckling behavior. The research objectives are to analyze and compare the strength, weight, and performance of cold-formed steel sections to traditional steel sections under wind loads for a sample industrial building project using optimization techniques in STADD Pro. The full paper would analyze the sample building and compare the performance of cold-formed steel to traditional steel sections.
“Finite Elemental Analysis of Industrial Mid Rise Building Using Cold Formed ...IRJET Journal
This document summarizes a research paper that analyzes the finite element analysis of an industrial mid-rise building using cold-formed steel. The researchers used SAP 2000 analysis software to model and analyze a new cold steel structural design for the building and compare it to designs using common Indian steel grades. Their analysis found that the cold-formed steel design had lower weight, higher strength, and was more cost effective compared to hot-rolled steel designs. Key areas of comparison included forces, deflections, support reactions, and total construction costs. The cold-formed steel design resulted in approximately 14% lower costs.
Cold-Formed-Steel Design And Construction ( Steel Structure )Hossam Shafiq I
This document discusses the history and development of cold-formed steel structural shapes. It begins by describing how Henry Cort introduced sheet rolling mills in 1784, leading to the first use of corrugated steel sheets for building materials. Continuous hot-rolling mills developed by John Tytus in 1923 enabled the modern steel fabricating industry using coiled strip steel. The document then discusses how cold-formed steel shapes are made through bending sheet or strip steel using roll-forming machines, press brakes, or bending brakes. It provides examples of common cold-formed steel products like door and window frames. The key principles in designing with cold-formed steel include preventing local buckling in thin, wide elements and accounting for shear lag and
This document discusses light gauge steel (LGS), including its concept, manufacturing process, structural behavior, uses in framing, and construction methods. LGS is a thin sheet steel that is roll or brake formed into cross-sectional shapes. Compared to hot rolled steel, LGS is lighter but stronger. Its thin width-to-thickness ratio means it is susceptible to local buckling under compression loads. LGS framing uses C-sections for studs, joists, and beams. Construction involves erecting LGS wall panels, installing floor and roof joists, and finishing with cladding and insulation.
a small presentation about machinability and Al machinability
containing:
Definition of Machinability
Machinability of Aluminum Alloys
How to improve the mach inability of Al alloy?
Cutting force during machining of aluminum alloys
Chip formation and chip segmentation
Surface of Machined Aluminium Alloys
MACHINABILITY RATINGS
IRJET- Analysis of Steel Silos Subjected to Wind Load with Various Slendernes...IRJET Journal
This document analyzes the structural behavior of circular thin-walled steel silos subjected to wind load with various slenderness ratios. Three finite element models of steel silos were created in SAP2000 with different height-to-diameter ratios (slenderness ratios): slender (4.2), intermediate (2.46), and squat (1.6). The models were analyzed under empty and full conditions to determine shell stresses and deformations. Results showed that deformation was highest for the slender silo when empty, but hoop stresses were highest for the squat silo when full. The analysis provides useful information for designing steel silos to withstand wind loads.
This document discusses steel framing systems, including cold-formed structures and composite floor slabs. Cold-formed structures use vertical steel columns and horizontal I-beams to form a skeleton frame, providing design flexibility. Composite floor slabs combine a steel deck with a concrete topping for strength and versatility. Case studies show that steel framing allows for faster construction times and cost savings compared to other materials.
TMT steel bars, also known as reinforcement bars or rebars, are the most important component of reinforced cement concrete structures like homes. The document provides a guide for selecting the right TMT bars, including an overview of the material and its usage. It describes the different types of TMT bars by grade, size, and material (primary vs secondary steel). It also offers tips for checking the quality and quantity of bars received, and proper storage practices.
IRJET- Buckling Behaviour of Cold Formed Steel SectionsIRJET Journal
This document summarizes a research paper that analyzes the buckling behavior of cold-formed steel sections using numerical modeling. It introduces cold-formed steel, its manufacturing process, and failure modes related to buckling. It then describes modeling 5 channel section geometries with and without lips in CUFSM software under simply supported conditions. The results show that distortional buckling only occurred when lips were present, and its effect varied based on the lip position. In conclusion, CUFSM was found to be a reliable free software to analyze buckling behavior of columns through the finite strip method.
Revision of Industry Residence with Two Different Materials Considering Const...ijtsrd
In our study we are performing analysis of such structure considering material other that General steel hot rolled . In this study we are analyzing the same structure with same loading conditions using Cold formed steel structure. In this study we are comparing both the structures for lateral pressure using analysis tool Staad.pro which is advance analysis tool with optimization option for cost effective design. Comparative analysis was done while creating a structure using Hot rolled Steel sections and Cold Formed Steel CFS and results were presented on Shear Force, Axial Force, Support Reaction, Node Deflection and Cost analysis where Cold formed Steel was found durable in every case. Amit Kumar Tiwari | Abay Kumar Jha | Rohit jain "Revision of Industry Residence with Two Different Materials Considering Construction Framework using Staad.Pro" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-6 , October 2020, URL: https://www.ijtsrd.com/papers/ijtsrd33417.pdf Paper Url: https://www.ijtsrd.com/engineering/civil-engineering/33417/revision-of-industry-residence-with-two-different-materials-considering-construction-framework-using-staadpro/amit-kumar-tiwari
Our project is all about machinability of aluminium and its alloys from adding Lead (Pb) and Bismuth (Bi) to the great effect of Si Content on machinability as cutting forces , power and surface finish..........thank you for your time. ( Group 36 )
Different rolled steel bars and sectionsskytechmetals
Rolled steel sections are available in various forms for use in Steel Construction. Shapes, sizes, and properties of these rolled steel sections, Different steel members are manufactured in the factories based their usage
This document provides a draft revision to the Indian Standard specification for hot rolled medium and high tensile structural steel. Some key changes in the revision include:
1) The title has been modified and the word 'low' has been deleted to reflect the grades of steel covered.
2) Nine grades of steel are now specified, with some grades having two to four sub-qualities indicating impact test requirements and deoxidation method.
3) The manufacturing clause has been modified to allow for different steelmaking and rolling practices.
4) Requirements have been aligned with international standards like EN and ASTM to make the Indian standard more comparable globally.
This document discusses welding as a joining process. It defines welding as joining two parts by applying heat and/or pressure to coalesce their surfaces. There are two main categories of welding: fusion welding, where parts are joined by melting, and solid state welding, where parts are joined below melting temperature using pressure. The document outlines different types of welds (e.g. fillet, groove) and weld joints (e.g. butt, lap). It also discusses the physics of welding, including concepts like power density, heat transfer efficiency, and the energy required to melt materials. Automation in welding is mentioned as a way to improve safety, productivity and quality.
Steel is an alloy of iron and carbon that is strong, tough, ductile, and durable. It exists in many forms for construction including carbon steels, alloy steels, and stainless steels. Steel has important physical properties like strength and toughness as well as chemical properties like density and thermal conductivity. Mechanical properties are also critical and determine the load steel can withstand. Notch toughness refers to a steel's ability to resist crack propagation which is important for durability. In buildings, steel is used for reinforcement cages in concrete, as well as foundations, beams, girders, and the structural frame.
Numerical simulation of friction stir butt welding processes for az91 magnesi...eSAT Publishing House
This document describes a numerical simulation of friction stir butt welding for AZ91 magnesium alloy. A 3D nonlinear thermo-mechanical finite element model was developed using ABAQUS to predict temperature distribution and evaluate mechanical properties during the welding process. The model considers heat generation due to friction between the rotating tool and workpiece. Results show the maximum temperature reached was 483°C and residual stress was highest along the weld path. Pressure was also highest in the weld midpoint. Graphs of internal energy and strain energy over time were produced from the simulation results.
Numerical simulation of friction stir butt welding processes for az91 magnesi...eSAT Journals
Abstract Friction Stir Welding (FSW) is a solid state welding process. In particular, it can be used to join high-strength aerospace magnesium and other metallic alloys that are hard to weld by conventional fusion welding. It was performed on 4 mm thickness AZ91 Magnesium alloy. Magnesium alloy have more advantage than aluminum such as light weight, softer, tendency to bend easily, cost effective in terms of energy requirements so magnesium alloy has selected in this FSW technique. In friction stir welding (FSW), a momentous residual stress is present in weld due to complex nature of fixturing system compared to fusion welding. These residual stresses can affect properties of welded components during service. Therefore, for estimating magnitude of welding residual stresses and their nature of distribution along with thermal history, a three dimensional non- linear thermo-mechanical finite element (NLTMFE) model using ABAQUS/ CAE package was developed for butt welded magnesium alloy AZ91. The objective of this work is to predict the temperature distribution in both materials and evaluate the mechanical properties during the friction stir welding on magnesium alloy. Keywords: Fsw, Nltmfe, Abaqus, Cae, Az91.
Structural steel framing uses a system of steel beams and columns to form the vertical and horizontal frame of low, mid, and high-rise buildings. It is a durable, cost-effective, and sustainable construction material. Ironworkers are needed to erect the steel frames, especially for tall buildings like skyscrapers, while site managers oversee construction activities and coordinate workers and deliveries.
This publication provides worked examples for the design of structural elements in a notional steel framed building according to Eurocode standards. It includes an overview of the Eurocode system and conventions used, and introduces relevant content from Eurocode standards for steel, composite steel and concrete, and concrete structures. The worked examples apply the parameter values and design options specified in the UK National Annexes. They were produced with input from structural design lecturers and are intended to help both students and practicing designers learn Eurocode design methods.
The document discusses specifications for anchor rods, base plates, and embedded plates according to various ASTM material standards and AISC provisions. It addresses questions regarding acceptable material specifications and configurations for anchor rods, preferred hole sizes in base plates, requirements for washers, acceptable methods for extending short anchor rods or welding rods to base plates, and considerations for accounting for base plate distortion and providing grout holes. Acceptable threads can be rolled, cut, or ground. Anchor rods should not be welded to base plates if intended to provide erection stability. Hooked rods are not recommended for uplift resistance.
Steel structures are made from combinations of structural steel members designed to carry loads and provide rigidity. Common steel structures include buildings, bridges, and towers. Steel comes in various grades depending on carbon content, including low carbon steel (mild steel), medium carbon steel, and high carbon steel. Steel structures offer advantages like strength, light weight, and ease of fabrication but require maintenance to prevent corrosion. Common steel sections used in construction include I-beams, channels, angles, and hollow sections. Connections between steel members can be welded, bolted, or riveted.
“Review on Finite Elemental Analysis of Industrial Mid Rise Building Using Co...IRJET Journal
This document summarizes a research paper that analyzes the finite element analysis of an industrial mid-rise building using cold-formed steel. It begins with an abstract that outlines analyzing cold-formed steel sections using software like STADD Pro. It then reviews literature on analyzing cold-formed steel structures for seismic loading and buckling behavior. The research objectives are to analyze and compare the strength, weight, and performance of cold-formed steel sections to traditional steel sections under wind loads for a sample industrial building project using optimization techniques in STADD Pro. The full paper would analyze the sample building and compare the performance of cold-formed steel to traditional steel sections.
“Finite Elemental Analysis of Industrial Mid Rise Building Using Cold Formed ...IRJET Journal
This document summarizes a research paper that analyzes the finite element analysis of an industrial mid-rise building using cold-formed steel. The researchers used SAP 2000 analysis software to model and analyze a new cold steel structural design for the building and compare it to designs using common Indian steel grades. Their analysis found that the cold-formed steel design had lower weight, higher strength, and was more cost effective compared to hot-rolled steel designs. Key areas of comparison included forces, deflections, support reactions, and total construction costs. The cold-formed steel design resulted in approximately 14% lower costs.
Design and economical of roof trusses & purlins (comparison of limit stat...eSAT Journals
Abstract For a structural design to be satisfactory, generally four major objectives – utility, safety, economical and elegance must be fulfilled. This paper presents a study on behaviour and economical of roof trusses and purlins by comparison of limit state and working stress method. Roof trusses and purlins are therefore an integral part of an industrial building and the like for supporting the roofing system. This paper presents a study on behaviour and economical of fink type roof trusses, channel section purlins by comparison of limit state and working stress method. This study involves in examination of theoretical investigations of specimens in series. Overall two methods were designed and comparison of all the internal force, economical, and hence, to evaluate the co-existing moments and shear forces at the critical cross-section with same configuration area by keeping all other parameters constant. The theoretical data are calculated using Indian Standard code IS 875-1975 (part III), IS 800 – 2007 using limit state method, IS 800- 1984 using working stress method and the section properties of the specimens are obtained using steel table. The specimens are designed under uniformly distributed loading with simply supported condition. The research project aims to provide which method is economical, high bending strength, more load carrying capacity and high flexural strength. The studies reveal that the theoretical investigations limit state method design is high bending strength, high load caring capacity, minimum deflection and minimum local buckling& distortional buckling compare to the working stress method. But working stress method is most economical compare to the limit state method design. Keywords bending strength, deflection, limit state method, purlins, roof trusses, working stress method.
Design and economical of roof trusses & purlins (comparison of limit state an...eSAT Publishing House
This document compares the limit state method and working stress method for designing roof trusses and purlins using light gauge steel sections. It analyzes fink type roof trusses and channel section purlins using both methods while keeping other parameters constant. The limit state method results in higher bending strength, load capacity, and less deflection and buckling compared to the working stress method. However, the working stress method proves to be more economical. The study aims to determine the most economical and structurally sound design method.
A Review on Stressed Skin Behaviour of Steel Façade FrameIRJET Journal
This document summarizes a research paper that studied the stressed skin behavior of steel facade frames. Some key findings include:
1) Introducing steel cladding to a facade frame, and connecting it with fasteners, increases the overall stiffness of the frame and allows it to resist lateral loads through stressed skin action.
2) Factors like the number and gauge of fasteners, frame dimensions, and cladding type influence the strength and deformability of the stressed skin system.
3) Finite element analysis confirmed that stressed skin behavior reduces calculated frame stresses and deformations compared to an unclad frame.
EXPERIMENTAL INVESTIGATION ON EFFECT OF SHEAR CONNECTOR IN LIGHT WEIGHT CONCRETEIAEME Publication
Composite construction is well established for some decades as a construction method. The light steel gives two advantages which are cheaper and lighter. One of the important parameters which affects the ultimate strength of the composite section is the bond at the interface of the steel
and the concrete which relies on the shear forces existing between the steel section and the concrete core where mechanical connectors are provided. Based on the literature survey, Stud connectors are to be used in this experimental work, because of its excellent load carrying capacity and better
ductility.
Experimental investigation on effect of shear connector in light weight concreteIAEME Publication
This study experimentally investigates the effect of shear connectors in lightweight concrete composites. Lightweight concrete was produced using quarry dust and glass fibers as partial replacements for normal fine aggregates. Composite beams were produced using cold formed steel sections and lightweight concrete. Different arrangements of stud shear connectors were tested in both normal and lightweight concrete. The results showed that increasing the glass fiber content improved the compressive strength and bond strength between the steel and concrete. The failure modes and strengths of the composite beams were compared. It was found that lightweight concrete composites with higher glass fiber content performed comparably to normal concrete composites.
IRJET- Composite Floors using Profiled Deck Sheet in Steel StructureIRJET Journal
This document discusses the use of profiled deck sheets in composite steel-concrete floors. It provides an overview of composite floor construction and the benefits of using profiled deck sheets, such as reduced steel and concrete usage. The document then describes the design methodology for composite floors with profiled deck sheets according to Eurocode 4 and British Standards, including determining the section properties of the deck sheet, required concrete volume, and checking flexural capacity, shear strength, and deflection. An example design is presented and the paper concludes that composite floors with profiled deck sheets provide economies over conventional concrete slabs, including reduced material usage and increased structural capacity.
IRJET- Analysis of an Irregular Building with Stiffened Steel Plate Shear...IRJET Journal
The document analyzes a 15-story irregular building with diagonally stiffened steel plate shear walls (SPSWs) using software to determine storey drift, displacement, and stiffness. It finds that placing diagonally stiffened SPSWs at the building edges rather than the center reduces drift and displacement. Thicker steel plates and diagonal stiffeners increase the overall stiffness of the building structure.
Dynamic Analysis of Multi Storey Steel StructuresIRJET Journal
This document analyzes the dynamic behavior of multi-storey steel structures subjected to earthquakes through modeling and analysis in STAAD Pro. It summarizes that steel structures perform better than other materials in earthquakes due to their lower mass and consequent lower seismic forces. A 20-storey steel building is modeled and analyzed using response spectrum analysis to investigate seismic responses at different zones. Results show base shear, displacements and drifts increase with zone and floor level. Dynamic analysis yields lower forces than static analysis, demonstrating steel structures' improved earthquake resistance.
Advanced welding ,casting , forming processes PDF by badebhau4@gmail.comEr. Bade Bhausaheb
The document discusses advanced manufacturing processes including friction stir welding, advanced die casting, and tooling. It provides details on friction stir welding such as how it works as a solid-state welding process without reaching melting point. It also discusses advantages like producing high quality welds with fewer defects compared to traditional welding. The document then covers various types of tooling used for sheet metal pressing, molding, jigs/fixtures, and their applications in press working processes like blanking, piercing, bending, drawing, and others.
IRJET- Numerical Investigation on Cold Formed Press Braking Steel Zed Section...IRJET Journal
This document describes a numerical investigation on cold formed press braking steel Z-section columns under axial compression. Various Z-section profiles were analyzed using the finite strip method (CUFSM) and finite element analysis (ANSYS) to determine buckling behavior. A parametric study was conducted by varying the yield stress of the steel sheets while keeping thickness and length constant. Theoretical analysis using the direct strength method and Indian code provisions were also carried out and compared to the numerical results. The scope of the study was to determine the most effective Z-section profile for carrying ultimate load with minimum buckling values.
IRJET- Comparative Study on Behaviour of Cold-Formed Purlin Section-Revie...IRJET Journal
This document presents a review of literature on the comparative study of the behavior of cold-formed steel purlin sections. It summarizes several studies that have analyzed the load carrying capacity and deflection of various cold-formed and hot-formed steel sections under elastic parameters through analytical and finite element methods. The literature reviewed includes studies on the bending and twisting behavior of channel-section purlins, buckling behavior of laterally-restrained Z-section beams, interaction of local and distortional buckling modes in lipped channel beams, and torsional behavior of cold-formed steel sections. The conclusions drawn are that cold-formed steel is increasingly being used in structures due to its inherent properties and thinner gauge compared to hot
Comparative Study of Pre-Engineered Building and Conventional Steel StructuresIRJET Journal
This document provides a comparative study between pre-engineered buildings and conventional steel structures. It discusses the concepts and designs of both building types, with pre-engineered buildings using tapered sections tailored to stress requirements, while conventional structures use standard sections regardless of stress. The document aims to design models of various spans for both building types using Staad Pro software and analyze them under different loads to determine which system is more economical in terms of steel consumption and cost. Previous literature that also found pre-engineered buildings to be more efficient and economical is reviewed.
IRJET- Finite Element Analysis on Parametric Behaviour of Hybridised Cold For...IRJET Journal
This document presents a finite element analysis of different cold-formed steel sections for use in multi-story buildings. Three cold-formed steel sections (supacee, supazed, and sigma) were modeled and analyzed in ANSYS to evaluate their load-carrying capacities and ductility. The sigma section showed the best combination of strength and ductility. A hybrid wall panel using sigma sections for the inner panels and hot-rolled steel for the outer panel was also modeled and found to increase the ultimate load capacity and deformation compared to a wall with only hot-rolled steel. In conclusion, cold-formed steel with a sigma section is recommended for use in hybridized building frames due to its favorable structural performance.
Structural Analysis and Design of Different types of Castellated BeamIRJET Journal
This document discusses the structural analysis and design of different types of castellated beams. It begins with an abstract that outlines the advantages of castellated beams in increasing strength and economy. It then discusses the use of castellated beams in various structures and the fabrication process. The document outlines the design process for castellated beams, which involves selecting cutting angles, computing loads and moments, checking shear capacity, and ensuring stress and deflection limits are not exceeded. It concludes that castellated beams allow for increased structural depth without weight increase, improving strength to weight ratios and reducing costs.
Analysis of Cold Formed Steel Connections using FEMIRJET Journal
1. The document analyzes cold formed steel connections using finite element modeling (FEM). Four different beam-column connection configurations are modeled and tested, including connections with single or double rows of screws with or without angle plates.
2. Experimental results for each connection are compared to FEM analysis results from ANSYS. The connections are modeled in CATIA and meshed in Hypermesh before analysis in ANSYS to determine load-carrying capacity, displacement, stress, and strain.
3. Preliminary results show that connections using double rows of screws and angle plates have higher load capacities than those with single rows or without plates. Further comparison of experimental and FEM results will provide insight into optimizing cold formed steel
IRJET- Cold Formed Steel Lipped Zed Section with and without Web Holes –Web C...IRJET Journal
1. The study investigated the web crippling behavior of cold-formed steel lipped zed sections with and without circular web holes through theoretical analysis, experimental testing, and finite element analysis using ANSYS.
2. Theoretical analysis was conducted based on IS 801-1975 and BS 5950-1998 design codes, experimental testing involved flexural testing of sections under uniformly distributed loading with and without web holes, and finite element models were developed to analyze web crippling behavior.
3. The results found that the ratio of the web hole depth to the web depth and the distance from the edge of the bearing divided by the flat depth of the web influenced web crippling. Theoretical values were higher than
IRJET- Comparative Study on Behaviour of Cold-Formed Purlin Section-Review PaperIRJET Journal
This document presents a review of literature on the comparative study of the behavior of cold-formed steel purlin sections. It first introduces that cold-formed steel members are formed at room temperature and have higher yield strength than hot-rolled members. The literature review then summarizes several papers that have analyzed the load carrying capacity and deflection of various cold-formed sections through analytical and finite element models. These studies compared the behavior of cold-formed sections to hot-rolled sections. The conclusion is that cold-formed steel is increasingly being used in structures due to its properties and that further research is needed to study the behavior of built-up cold-formed sections.
IRJET- Seismic Response of Mass and Stiffness Irregular Multi-Storied Stru...IRJET Journal
This document summarizes a research paper that analyzes the seismic response of irregular multi-story structures with different types of composite columns. The paper models a 15-story building with mass and stiffness irregularities using two composite column types: concrete-filled steel tube (CFST) columns and concrete encased I-section columns. Response spectrum analysis is performed to compare the time period, story displacement, story drift, and overturning moments between the column types. The CFST columns showed reduced time periods, indicating increased stiffness of the building compared to the concrete encased columns.
This document presents a study that uses linear regression to predict university freshmen's academic performance (GPA) based on their scores on the Joint Matriculation Examination (JME). The study finds a weak positive correlation (R=0.137) between GPA and JME scores, with the regression model only explaining 1.9% of variability in GPA. Statistical tests show no significant relationship between JME score and university GPA (p>0.05). The study concludes that JME score is not a strong predictor of freshmen academic performance.
This document describes a school bus tracking and security system that uses face recognition, GPS, and notification technologies. The system uses a camera to identify students as they board and exit the bus. A GPS module tracks the bus location and uploads coordinates to a database. Parents and school administrators can access this information through a mobile app to track students. When a student's face is recognized, a notification is sent to the parents. The system aims to increase student safety by monitoring their locations and notifying parents when they enter or exit the bus.
BigBasket encashing the Demonetisation: A big opportunityIJSRED
1. BigBasket is India's largest online grocery retailer, launched in 2011 when online grocery shopping was still nascent.
2. During India's 2016 demonetization, when cash was scarce, online grocery saw a major boost as consumers turned to sites like BigBasket for contactless digital payments.
3. However, BigBasket faced challenges in meeting consumer expectations for quick delivery while expanding partnerships with local vendors for fresh produce during this surge in demand.
Quantitative and Qualitative Analysis of Plant Leaf DiseaseIJSRED
This document discusses a technique for detecting plant leaf diseases using image processing. It begins with an introduction to plant pathology and the importance of identifying plant diseases. Common plant leaf diseases like Alternaria Alternata, Anthracnose, Bacterial blight, and Cercospora Leaf Spot are described along with their symptoms. The existing methods of disease identification are discussed. The proposed method uses various image processing techniques like filtering, histogram equalization, k-means clustering, and Gray Level Co-occurrence Matrix (GLCM) feature extraction to detect diseases. Image quality is then assessed to identify the affected regions of the leaf.
DC Fast Charger and Battery Management System for Electric VehiclesIJSRED
This document discusses the development of a DC fast charger and battery management system for electric vehicles. It aims to reduce charging times for EVs by designing an efficient charging mechanism. A PIC microcontroller controls the charging voltage and a battery management system monitors battery temperature, voltage, current and provides notifications. The system uses a step-down transformer, rectifier, voltage regulators and temperature sensor to charge lithium-ion batteries safely and quickly, while the battery management system protects the batteries from overcharging or overheating. Faster charging times through more charging stations could encourage greater adoption of electric vehicles.
France has experienced steady economic growth through policies that develop human capital and innovation. It has a highly organized education system that has increased enrollments over time, particularly in tertiary education. France also invests heavily in research and development, ranking highly in patents and innovative organizations. Infrastructure investment has also increased tangible capital stock. Additionally, factors like political stability, rule of law, and low corruption create an environment conducive to business investment and growth. Major events like the French Revolution helped shape France culturally, legally and technologically in ways that still influence its growth path today.
This document describes an acquisition system designed to make the examination process more efficient. The system uses a Raspberry Pi to control various hardware components including an RFID reader, rack and pinion assembly, and motor. It is intended to reduce the time and effort required of staff to distribute exam materials by automating the process. When examiners scan their RFID tags, the system verifies their identity and allows them to retrieve the appropriate exam bundles via a motorized rack and pinion assembly. The goal is to minimize manual labor and speed up exam distribution using an automated hardware and software solution controlled by a Raspberry Pi microcontroller.
Parallelization of Graceful Labeling Using Open MPIJSRED
This document summarizes research on parallelizing the graceful graph labeling problem using OpenMP on multi-core processors. It introduces the concepts of parallelization, multi-core architecture, and OpenMP. An algorithm is designed to parallelize graceful labeling by distributing graph vertices across processor cores. Execution time and speedup are measured for graphs of increasing size, showing improved speedup and reduced time with parallelization. Results show consistent performance gains as graph size increases due to better utilization of the multi-core architecture.
Study of Phenotypic Plasticity of Fruits of Luffa Acutangula Var. AmaraIJSRED
This study examines the phenotypic plasticity of fruits in the plant Luffa acutangula var. amara across different locations in Sindhudurg district, Maharashtra, India. The study found that the plant exhibited plasticity in growth cycle, flowering season, leaf shape, and fruit size depending on location. Maximum fruit weights and sizes were recorded at Talebazar village, while minimum sizes were found at Dahibav village. The variation in fruit morphology is an adaptation to the different environmental conditions at each site.
Understanding Architecture of Internet of ThingsIJSRED
The document discusses the architecture of the Internet of Things (IoT). It begins by introducing IoT and its key components. It then discusses three traditional IoT architectures: (1) a three-layer architecture consisting of a perception, network and application layer; (2) the TCP/IP four-layer model; and (3) the Telecommunications Management Network's five-layer logical layered architecture. The document proposes a new five-layer IoT architecture combining aspects of these models. The five layers are the business, application, processing, transport and perception layers. The perception layer collects data via sensors while the business layer manages the overall enterprise.
This document describes a project report submitted by three students for their bachelor's degree. The report outlines the development of a smart shopping cart system that utilizes RFID and Zigbee technologies. The smart cart is intended to enhance the shopping experience for customers by automatically billing items as they are added to the cart, providing real-time stock levels, and reducing checkout times. The system aims to benefit both customers through a more personalized shopping experience and retailers by improving stock management and reducing shoplifting. The document includes sections on requirements, system design, implementation, results and discussion, and conclusions.
An Emperical Study of Learning How Soft Skills is Essential for Management St...IJSRED
This document discusses an empirical study on the importance of soft skills for management students' careers. It finds that while hard skills and academic performance were once prioritized by employers, soft skills like communication, teamwork, and emotional intelligence are now essential for success. The study surveyed 50 management students and faculty in Bangalore to understand how well soft skills training is incorporated and its benefits. It determined that soft skills like communication are crucial as they influence interactions and job performance. However, older teaching methods do not sufficiently develop these skills. Integrating soft skills training into courses could better prepare students for today's work challenges.
The document describes a proposed smart canteen management system that uses various technologies like a web application, barcode scanner, and thermal printer to automate the food ordering process. The system aims to reduce wait times for students and avoid food wastage by allowing online ordering and monitoring stock. A barcode scanner will be used to identify students during ordering and payment. Thermal printers will generate receipts. The system is expected to reduce workload for staff and provide detailed sales reports for management.
This document discusses Gandhi's concept of trusteeship as an alternative economic system. It summarizes that Gandhi did not distinguish between economics and ethics, and based trusteeship on religious ideas like non-possession and truth as well as Western ideas like stewardship. Trusteeship aimed to persuade wealthy property owners to hold wealth in trust for the benefit of society rather than personal gain. It was meant as a non-violent alternative to capitalism and communism that eliminated class conflict through cooperation and trust between rich and poor. The document provides background on the philosophical and religious influences on Gandhi's views before explaining the key aspects of his theory of trusteeship.
Impacts of a New Spatial Variable on a Black Hole Metric SolutionIJSRED
This document discusses the impacts of introducing a new spatial variable in black hole metrics. It begins by summarizing Einstein and Rosen's 1935 paper which introduced a variable ρ = r - 2M in the Schwarzschild metric to remove the singularity. The document then introduces a similar new variable p = r - 2√M and analyzes how this impacts the Schwarzschild metric. Specifically, it notes that this new variable allows for negative radii values and multiple asymptotic regions beyond just two, introducing concepts of probability and imaginary spatial coordinates. Overall, the document explores how different mathematical variables can impact theoretical physics concepts like wormholes.
A Study to Assess the Effectiveness of Planned Teaching Programme on Knowledg...IJSRED
This document summarizes a study that assessed the effectiveness of a planned teaching program on mothers' knowledge of preventing acute respiratory infections in children under 5. 50 mothers were surveyed before and after the program. Before, 36% had moderate knowledge, 62% had inadequate knowledge, and 2% had adequate knowledge. After, 34% had moderate knowledge, 0% had inadequate knowledge, and 66% had adequate knowledge, showing the program improved mothers' knowledge. The study found no significant association between mothers' knowledge and factors like age, education, or family type.
This document describes a proposed ingenuous Trafalgar contrivition system to improve traffic flow and emergency vehicle access. The system uses embedded technologies like a Raspberry Pi, RF transmitter and receiver, and an Android app. When an emergency vehicle is detected approaching a traffic light, the system will open the lights on its path without disrupting other signals. The app will also help identify hit-and-run vehicles through a brief tracking period. The goal is to reduce traffic congestion and response times to save lives.
This document discusses a proposed system called the Farmer's Analytical Assistant, which aims to help farmers in India maximize crop yields through predictive analysis and recommendations. It analyzes agricultural data on factors like soil properties, rainfall, and past crop performance using machine learning techniques to predict optimal crops for different regions based on the environmental conditions. The proposed system would allow farmers to input local data, receive personalized yield predictions and crop suggestions, and get advice from experts online. The methodology section describes how climate/rainfall and soil data is collected and analyzed using machine learning models to provide crop recommendations. The goal is to improve upon traditional crop selection methods and help increase farmers' incomes.
Functions of Forensic Engineering Investigator in IndiaIJSRED
Forensic engineering involves applying engineering principles and methodologies to answer legal questions, especially regarding accidents and failures. A forensic engineer investigates failures through failure analysis and root cause analysis to determine how and why something failed. The engineer must be familiar with relevant codes and standards, understand eyewitness testimony, apply the scientific method to reconstruct events, and report findings clearly to assist courts. A forensic engineering investigation follows the scientific method to methodically analyze evidence and test hypotheses to determine the cause and circumstances of a failure or accident.
Supermarket Management System Project Report.pdfKamal Acharya
Supermarket management is a stand-alone J2EE using Eclipse Juno program.
This project contains all the necessary required information about maintaining
the supermarket billing system.
The core idea of this project to minimize the paper work and centralize the
data. Here all the communication is taken in secure manner. That is, in this
application the information will be stored in client itself. For further security the
data base is stored in the back-end oracle and so no intruders can access it.
Blood finder application project report (1).pdfKamal Acharya
Blood Finder is an emergency time app where a user can search for the blood banks as
well as the registered blood donors around Mumbai. This application also provide an
opportunity for the user of this application to become a registered donor for this user have
to enroll for the donor request from the application itself. If the admin wish to make user
a registered donor, with some of the formalities with the organization it can be done.
Specialization of this application is that the user will not have to register on sign-in for
searching the blood banks and blood donors it can be just done by installing the
application to the mobile.
The purpose of making this application is to save the user’s time for searching blood of
needed blood group during the time of the emergency.
This is an android application developed in Java and XML with the connectivity of
SQLite database. This application will provide most of basic functionality required for an
emergency time application. All the details of Blood banks and Blood donors are stored
in the database i.e. SQLite.
This application allowed the user to get all the information regarding blood banks and
blood donors such as Name, Number, Address, Blood Group, rather than searching it on
the different websites and wasting the precious time. This application is effective and
user friendly.
AI in customer support Use cases solutions development and implementation.pdfmahaffeycheryld
AI in customer support will integrate with emerging technologies such as augmented reality (AR) and virtual reality (VR) to enhance service delivery. AR-enabled smart glasses or VR environments will provide immersive support experiences, allowing customers to visualize solutions, receive step-by-step guidance, and interact with virtual support agents in real-time. These technologies will bridge the gap between physical and digital experiences, offering innovative ways to resolve issues, demonstrate products, and deliver personalized training and support.
https://www.leewayhertz.com/ai-in-customer-support/#How-does-AI-work-in-customer-support
Null Bangalore | Pentesters Approach to AWS IAMDivyanshu
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
Build the Next Generation of Apps with the Einstein 1 Platform.
Rejoignez Philippe Ozil pour une session de workshops qui vous guidera à travers les détails de la plateforme Einstein 1, l'importance des données pour la création d'applications d'intelligence artificielle et les différents outils et technologies que Salesforce propose pour vous apporter tous les bénéfices de l'IA.
Levelised Cost of Hydrogen (LCOH) Calculator ManualMassimo Talia
The aim of this manual is to explain the
methodology behind the Levelized Cost of
Hydrogen (LCOH) calculator. Moreover, this
manual also demonstrates how the calculator
can be used for estimating the expenses associated with hydrogen production in Europe
using low-temperature electrolysis considering different sources of electricity