This document provides 43 references related to fatigue crack propagation under variable amplitude loading conditions and the effects of overloads. The references cover topics such as retardation mechanisms following overloads, the influence of stress ratios and microstructure on crack growth, and experimental results on crack propagation in various materials under constant and variable amplitude loads.
The elephant had a dream that he lost his heart and woke up believing it was real, so he set out to find his big heart. He asked the squirrel, rabbit, tortoise, and owl if they had seen his heart, but they had not. The owl said it had passed by the river. There, the elephant found another elephant who said it was caring for the first elephant's heart all along. The first elephant realized he had given his heart to the other elephant to take care of.
Psychologists use several methods to measure personality, including projective tests, self-reporting inventories, and interviews. Projective tests like the Rorschach inkblot test and Thematic Apperception Test attempt to reveal unconscious feelings by having subjects interpret ambiguous stimuli, but they suffer from issues with subjectivity and reliability. Self-reporting inventories involve rating how well statements apply to oneself and include tests like the MMPI; they have clearer scoring standards but rely on self-awareness. Both methods have benefits and limitations in assessing personality.
This document discusses techniques to make a WordPress site resemble a native iPhone app, including hiding the browser address bar, scaling the window properly, customizing the home screen icon and splash screen, and putting the site into full-screen mode. While not a substitute for a responsive design, these tricks can provide a better mobile experience and make the site look more like a true app. Examples are provided of the code needed and the impact on a sample site.
Unwrapping Tumblr for PR Writers at Marquette UniversityMykl Novak
This document provides an overview of Tumblr and tips for using it as a writer. It discusses what Tumblr is, how to post different types of content like photos, text, quotes and links. It also covers how to engage on Tumblr through reblogging, liking, replying and answering questions. The document includes statistics on Tumblr's demographics and growth as well as examples of how brands, media organizations and individuals use Tumblr.
Unwrapping Tumblr for Writers (Advertising & PR at Marquette University)Mykl Novak
I unwrapped Tumblr with ADPR 2200: Media Writing at Marquette University. This presentation introduces Tumblr, describes posting and engaging on Tumblr and offers 10 tips for writers.
Fracture mechanisms ductile vs brittle failureali alsalihy
This document discusses mechanical failure in engineering materials. It begins by introducing different types of cyclic loading that can lead to failure, such as from waves, thermal changes, or walking. It then lists key issues to address, such as how cracks form and grow, how fracture resistance is quantified, and how factors like loading rate and temperature affect failure behavior. Finally, it provides an overview of different failure mechanisms like ductile and brittle fracture, defining terms and concepts and illustrating them with diagrams and images.
This document discusses fatigue and fatigue failure in materials. It covers three key stages of fatigue failure: initiation, crack propagation, and final rupture. It then discusses different approaches to analyzing fatigue, including stress-life, strain-life, and fracture mechanics approaches. Several factors that influence fatigue life are also examined, such as stress range, mean stress, frequency, and environment. Mechanisms of fatigue crack nucleation and growth are described along with methods for improving fatigue resistance.
The elephant had a dream that he lost his heart and woke up believing it was real, so he set out to find his big heart. He asked the squirrel, rabbit, tortoise, and owl if they had seen his heart, but they had not. The owl said it had passed by the river. There, the elephant found another elephant who said it was caring for the first elephant's heart all along. The first elephant realized he had given his heart to the other elephant to take care of.
Psychologists use several methods to measure personality, including projective tests, self-reporting inventories, and interviews. Projective tests like the Rorschach inkblot test and Thematic Apperception Test attempt to reveal unconscious feelings by having subjects interpret ambiguous stimuli, but they suffer from issues with subjectivity and reliability. Self-reporting inventories involve rating how well statements apply to oneself and include tests like the MMPI; they have clearer scoring standards but rely on self-awareness. Both methods have benefits and limitations in assessing personality.
This document discusses techniques to make a WordPress site resemble a native iPhone app, including hiding the browser address bar, scaling the window properly, customizing the home screen icon and splash screen, and putting the site into full-screen mode. While not a substitute for a responsive design, these tricks can provide a better mobile experience and make the site look more like a true app. Examples are provided of the code needed and the impact on a sample site.
Unwrapping Tumblr for PR Writers at Marquette UniversityMykl Novak
This document provides an overview of Tumblr and tips for using it as a writer. It discusses what Tumblr is, how to post different types of content like photos, text, quotes and links. It also covers how to engage on Tumblr through reblogging, liking, replying and answering questions. The document includes statistics on Tumblr's demographics and growth as well as examples of how brands, media organizations and individuals use Tumblr.
Unwrapping Tumblr for Writers (Advertising & PR at Marquette University)Mykl Novak
I unwrapped Tumblr with ADPR 2200: Media Writing at Marquette University. This presentation introduces Tumblr, describes posting and engaging on Tumblr and offers 10 tips for writers.
Fracture mechanisms ductile vs brittle failureali alsalihy
This document discusses mechanical failure in engineering materials. It begins by introducing different types of cyclic loading that can lead to failure, such as from waves, thermal changes, or walking. It then lists key issues to address, such as how cracks form and grow, how fracture resistance is quantified, and how factors like loading rate and temperature affect failure behavior. Finally, it provides an overview of different failure mechanisms like ductile and brittle fracture, defining terms and concepts and illustrating them with diagrams and images.
This document discusses fatigue and fatigue failure in materials. It covers three key stages of fatigue failure: initiation, crack propagation, and final rupture. It then discusses different approaches to analyzing fatigue, including stress-life, strain-life, and fracture mechanics approaches. Several factors that influence fatigue life are also examined, such as stress range, mean stress, frequency, and environment. Mechanisms of fatigue crack nucleation and growth are described along with methods for improving fatigue resistance.
The patent describes a method for controlled deposition of silicon-containing coatings adhered by an oxide layer using vapor-phase deposition. The method allows for precise control over the amount of reactants added, total pressure in the chamber, partial vapor pressures of components, substrate and surface temperatures. By varying these process parameters, film thickness and roughness can be controlled to produce coatings with desired characteristics.
The document provides an overview of different failure mechanisms including fracture, fatigue, and creep. It discusses ductile versus brittle failure behavior and different types of brittle fractures such as intergranular and transgranular. Factors that influence failure properties are also covered, such as temperature, loading rate, and stress concentrators. Design considerations to prevent failure like avoiding sharp corners and reducing flaw sizes are presented.
Publications and Presentations - Andrew BloyceAndy Bloyce
Andrew Bloyce has published extensively in the field of surface engineering and materials science. This document lists 57 of his publications, including 35 journal articles, 10 conference papers, and articles in 4 books. His research focuses on using techniques like laser treatment, plasma nitriding, and physical vapor deposition coatings to modify and improve the surface properties of metals like tool steels, titanium alloys, and aluminum bronzes. The goal is to enhance properties like wear resistance, hardness, and tribological performance for applications in materials processing and manufacturing components.
Microstructure design of steel for high creep resistanceRajdeep Mondal
In modern world the material has to be high creep resistance and high fatigue resistance. So, Design the material in such a way that material has to be high creep resistance and high fatigue resistance.
Mechanical failures can occur due to improper material selection, inadequate design, or misuse. The document discusses various failure mechanisms including ductile and brittle fracture, fatigue, and creep. It emphasizes that sharp corners and flaws act as stress concentrators that can lead to premature failure at stresses lower than theoretical values. The type of failure depends on the temperature and applied stress conditions.
This document summarizes aspects of fatigue and its finite element analysis. It discusses the stages of fatigue including crack initiation and growth. It also covers rate of crack propagation, stress-life methods, microstructural attributes, and life improvement techniques. Finite element analysis and fatigue simulation are performed in SolidWorks to analyze fatigue. The document provides an overview of research on fatigue from a materials science perspective.
MODELING, ANALYZING AND SAFETY ASPECTS OF TORSION AND NOISE EFFECTS ON ROUND ...msejjournal
Each material has its own effect and behavior on external impacts like heat, force, tension, compression,
torsion etc. It is important to study and analyze these behaviors before selecting a material for an
engineering application in the design aspects itself. If predicted values analyzed by both mathematical and
software are available it is easy to get the reliable details in the pre design itself. By this one can ensure the
safety of the component and the system also. In this investigation, the effects of torsional loads on mild steel
round shafts with various diameters and lengths have been analyzed. The additional effects like angle of
rotation, rpm and duration also considered to find the optimum predicted value. The data observed by
various experiments are analyzed by design of experiments especially by response surface methodology.
Minitab software is used for canalization. The data are tabulated and kept for future reference. Noise effect
due to the gradual torsional load performed in the gear box and other rotating components is also studied
for healthy working environment. The nature and characteristics of material also be explained by this noise
analysis.
Modeling, Analyzing and Safety Aspects of Torsion and Noise Effects on Round ...msejjournal
Each material has its own effect and behavior on external impacts like heat, force, tension, compression,
torsion etc. It is important to study and analyze these behaviors before selecting a material for an
engineering application in the design aspects itself. If predicted values analyzed by both mathematical and
software are available it is easy to get the reliable details in the pre design itself. By this one can ensure the
safety of the component and the system also. In this investigation, the effects of torsional loads on mild steel
round shafts with various diameters and lengths have been analyzed. The additional effects like angle of
rotation, rpm and duration also considered to find the optimum predicted value. The data observed by
various experiments are analyzed by design of experiments especially by response surface methodology.
Minitab software is used for canalization. The data are tabulated and kept for future reference. Noise effect
due to the gradual torsional load performed in the gear box and other rotating components is also studied
for healthy working environment. The nature and characteristics of material also be explained by this noise
analysis.
MODELING, ANALYZING AND SAFETY ASPECTS OF TORSION AND NOISE EFFECTS ON ROUND ...msejjournal
Each material has its own effect and behavior on external impacts like heat, force, tension, compression, torsion etc. It is important to study and analyze these behaviors before selecting a material for an engineering application in the design aspects itself. If predicted values analyzed by both mathematical and software are available it is easy to get the reliable details in the pre design itself. By this one can ensure the safety of the component and the system also. In this investigation, the effects of torsional loads on mild steel
round shafts with various diameters and lengths have been analyzed. The additional effects like angle of rotation, rpm and duration also considered to find the optimum predicted value. The data observed by various experiments are analyzed by design of experiments especially by response surface methodology. Minitab software is used for canalization. The data are tabulated and kept for future reference. Noise effect
due to the gradual torsional load performed in the gear box and other rotating components is also studied for healthy working environment. The nature and characteristics of material also be explained by this noise analysis.
This document lists publications and presentations by K. Min and others. It includes 24 publications in journals from 1989-2005 on topics related to materials science and semiconductor fabrication. It also lists 32 presentations given by K. Min and collaborators at domestic and international conferences from 1988-2000 on similar topics such as ion implantation, thin film growth, and surface analysis techniques. The publications and presentations cover over a decade of research focused on materials characterization and processing methods.
This document summarizes research on using laser shock processing to treat fastener holes in aging aircraft structures. Laser shock processing uses high-intensity laser pulses to generate deep compressive residual stresses near the surface of metals. These compressive stresses can significantly increase fatigue life by inhibiting crack initiation and growth. The document describes how laser shock processing works and provides examples showing it dramatically improves fatigue life in aluminum alloys. It proposes applying the technique to fastener holes, which are high-stress locations prone to fatigue cracks. This could help extend the lifespan of aging aircraft by reducing failures originating at fastener holes.
Influence Of Surface Roughness On Ultra-High-Cycle Fatigue Of Aisi 4140 Steel.IJERA Editor
Low and high-cycle fatigue life regimes are well studied and are relatively well understood. However, recent fatigue studies on steels have shown that fatigue failures can occur at low amplitudes even below the conventional fatigue limit in the ultra-high-cycle fatigue range (life higher than 107 cycles). Fatigue life in the regime of 106 to 108 cycles-to-failure in terms of the influence of manufacturing processes on fatigue strength is examined. Specifically, the influence of surface roughness of turned surfaces of AISI 4140 steel specimens on fatigue strength in the giga cycle or ultra-high-cycle fatigue range is evaluated. The fatigue experiments were carried out at room temperature, with zero mean stress, on a rotating-bending fatigue testing machine of the constant bending moment type. The fatigue strength of the specimens were determined using the staircase (or up-and-down) method.
IRJET- Investigation on Dissimilar Metal Welding of Stainless Steel 316 L and...IRJET Journal
The document investigates dissimilar metal welding of stainless steel 316L and mild steel A-2062 using gas tungsten arc welding (GTAW). Sixteen samples were prepared with variations in welding speed, current, and gas pressure based on a Taguchi experimental design. Tensile testing found ultimate tensile strengths ranging from 394 to 454 MPa. Microhardness was slightly higher than the base materials in the weld zone and heat-affected zone. Microstructure analysis was conducted on samples with the highest ultimate tensile strength, highest heat input, and lowest heat input. The depth of penetration averaged 5.8484 mm and bead width averaged 4.8243 mm across samples.
IP BE III SEMESTER CBGS071219113858.pdfEshantiwari6
This document provides information about the credit based grading system for the third semester of the Bachelor of Engineering program in Industrial and Production Engineering at J Jalpur Engineering College, Jabalpur. It includes the subject distribution, credits, and maximum marks allotted for both theory and practical components. Details are provided for 8 subjects along with their codes, titles, lecture and tutorial hours per week, total credits, and breakdown of assessment. The document also includes sample pages for one of the subjects - Energy, Environment, Ecology and Society - providing more details on content, references, and experiments.
Orientation Effects of Stress Concentrators on the Material Deformation Beha...IJMER
Present investigation pertains to carry out to experimental work to generate data in order to
establish the mode of material deformation and fracture in AISI 316 stainless steel strips of 1.70mm thickness in
the presence of elliptical notches at the center of the specimen whose major axis were designed to incline to the
tensile axis at an angle of 0o
, 45o
and 90o
and the same happens to be the axis of rolling. An elliptical hole of
8.00mm (major axis) with 5.0mm (minor axis) were machined in each specimen so as to correspond to the above
angles of 0o
45o
and90o
and one specimen without any elliptical hole as a notch for comparative analysis of the experimental data. These flat specimens with and without stress concentrators were tested under tension using Hounsfield Tcnsomctcr and the changes in notch geometry have been recorded at various loadings. Further, the visual appearance of the cracks initiation have been continuously observed and recorded. The effect of stress ratio factors and the strain ratio parameters on the mode of fracture on material deformation in and around the stress concentrator has been thoroughly analyzed and it has been established that the crack initiation began either at the inner tips of the minor or the major axis of the elliptical stress concentrator, but, always perpendicular to the direction of loading irrespective of the rolling direction and the orientations of the stress concentrators. However, the changes in the rotation of the major and the minor axis of the elliptical stress concentrators were found to alter, and, this alteration in fact assisted in estimating the strains along the major as well as the minor axis of the stress concentrators. Relation between a plastic strain ratio with respect to the ratio between the major and the minor strains was observed to be of extremely complex nature. The overall observation in the present investigation has indicated that thin strips or sheet specimens containing a single or multiple or a combined type of stress concentrators will create a keen interest in the research approach of the investigators and make them aware of the seriousness of the presence of the stress concentrators and caution them to incorporate any possible design notifications in order to avoid any catastrophic failure (s).
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Gol Ali Naziripour has over 30 years of experience in teaching and research in electronics, physics, and materials science. He has taught a variety of subjects at the university level and has extensive experience in areas such as circuit analysis, amplifiers, optics, and medical physics. His research focuses on materials properties, thin film devices, and instrumentation/measurement equipment, especially regarding ferrites, superconductors, and tunable components. He holds a Ph.D. from the University of Dundee and has worked in both academic and industrial settings.
The document is a patent that describes a vapor phase deposition method and apparatus for applying thin film coatings to substrates. The method and apparatus provide precise metering of reactive vapor species into a coating chamber to form coatings in a controlled manner. This allows application of coatings for uses such as fabrication of electronic devices, MEMS, biosensors, microfluidic devices, and imprint lithography. The apparatus allows precise addition of different reactants sequentially or simultaneously during the coating formation process.
The document summarizes research on the friction and wear of metals under micro-abrasion and dry/wet sliding conditions. It includes an introduction describing the research objectives to characterize coefficient of friction (CoF) and wear rates of metals under different wear modes. The experimental procedure used a micro-abrasion tester to apply loads to metal samples in contact with a rotating steel ball under various conditions to produce different wear modes. Results found that pure rolling abrasion generated the highest wear rates while dry sliding abrasion produced the lowest wear rates and CoFs. The research concluded the tester was useful for evaluating CoF under different tribological pairs and conditions.
Dr. S. Joseph Antony is an Associate Professor at the University of Leeds who specializes in particulate mechanics, physics of powders and grains, and interdisciplinary research including biomechanics. He uses multi-scale modeling techniques like DEM, FEM, and MD simulations combined with experimental methods to study topics like nano mechanics, micro mechanics, granular materials, and powder technology. He has published over 50 papers in reputed international journals and serves on the editorial boards of several journals in his field. His research has been funded by several sponsors and aims to link particle-scale properties to macroscopic behavior of particulate systems.
GraphRAG for Life Science to increase LLM accuracyTomaz Bratanic
GraphRAG for life science domain, where you retriever information from biomedical knowledge graphs using LLMs to increase the accuracy and performance of generated answers
Skybuffer SAM4U tool for SAP license adoptionTatiana Kojar
Manage and optimize your license adoption and consumption with SAM4U, an SAP free customer software asset management tool.
SAM4U, an SAP complimentary software asset management tool for customers, delivers a detailed and well-structured overview of license inventory and usage with a user-friendly interface. We offer a hosted, cost-effective, and performance-optimized SAM4U setup in the Skybuffer Cloud environment. You retain ownership of the system and data, while we manage the ABAP 7.58 infrastructure, ensuring fixed Total Cost of Ownership (TCO) and exceptional services through the SAP Fiori interface.
The patent describes a method for controlled deposition of silicon-containing coatings adhered by an oxide layer using vapor-phase deposition. The method allows for precise control over the amount of reactants added, total pressure in the chamber, partial vapor pressures of components, substrate and surface temperatures. By varying these process parameters, film thickness and roughness can be controlled to produce coatings with desired characteristics.
The document provides an overview of different failure mechanisms including fracture, fatigue, and creep. It discusses ductile versus brittle failure behavior and different types of brittle fractures such as intergranular and transgranular. Factors that influence failure properties are also covered, such as temperature, loading rate, and stress concentrators. Design considerations to prevent failure like avoiding sharp corners and reducing flaw sizes are presented.
Publications and Presentations - Andrew BloyceAndy Bloyce
Andrew Bloyce has published extensively in the field of surface engineering and materials science. This document lists 57 of his publications, including 35 journal articles, 10 conference papers, and articles in 4 books. His research focuses on using techniques like laser treatment, plasma nitriding, and physical vapor deposition coatings to modify and improve the surface properties of metals like tool steels, titanium alloys, and aluminum bronzes. The goal is to enhance properties like wear resistance, hardness, and tribological performance for applications in materials processing and manufacturing components.
Microstructure design of steel for high creep resistanceRajdeep Mondal
In modern world the material has to be high creep resistance and high fatigue resistance. So, Design the material in such a way that material has to be high creep resistance and high fatigue resistance.
Mechanical failures can occur due to improper material selection, inadequate design, or misuse. The document discusses various failure mechanisms including ductile and brittle fracture, fatigue, and creep. It emphasizes that sharp corners and flaws act as stress concentrators that can lead to premature failure at stresses lower than theoretical values. The type of failure depends on the temperature and applied stress conditions.
This document summarizes aspects of fatigue and its finite element analysis. It discusses the stages of fatigue including crack initiation and growth. It also covers rate of crack propagation, stress-life methods, microstructural attributes, and life improvement techniques. Finite element analysis and fatigue simulation are performed in SolidWorks to analyze fatigue. The document provides an overview of research on fatigue from a materials science perspective.
MODELING, ANALYZING AND SAFETY ASPECTS OF TORSION AND NOISE EFFECTS ON ROUND ...msejjournal
Each material has its own effect and behavior on external impacts like heat, force, tension, compression,
torsion etc. It is important to study and analyze these behaviors before selecting a material for an
engineering application in the design aspects itself. If predicted values analyzed by both mathematical and
software are available it is easy to get the reliable details in the pre design itself. By this one can ensure the
safety of the component and the system also. In this investigation, the effects of torsional loads on mild steel
round shafts with various diameters and lengths have been analyzed. The additional effects like angle of
rotation, rpm and duration also considered to find the optimum predicted value. The data observed by
various experiments are analyzed by design of experiments especially by response surface methodology.
Minitab software is used for canalization. The data are tabulated and kept for future reference. Noise effect
due to the gradual torsional load performed in the gear box and other rotating components is also studied
for healthy working environment. The nature and characteristics of material also be explained by this noise
analysis.
Modeling, Analyzing and Safety Aspects of Torsion and Noise Effects on Round ...msejjournal
Each material has its own effect and behavior on external impacts like heat, force, tension, compression,
torsion etc. It is important to study and analyze these behaviors before selecting a material for an
engineering application in the design aspects itself. If predicted values analyzed by both mathematical and
software are available it is easy to get the reliable details in the pre design itself. By this one can ensure the
safety of the component and the system also. In this investigation, the effects of torsional loads on mild steel
round shafts with various diameters and lengths have been analyzed. The additional effects like angle of
rotation, rpm and duration also considered to find the optimum predicted value. The data observed by
various experiments are analyzed by design of experiments especially by response surface methodology.
Minitab software is used for canalization. The data are tabulated and kept for future reference. Noise effect
due to the gradual torsional load performed in the gear box and other rotating components is also studied
for healthy working environment. The nature and characteristics of material also be explained by this noise
analysis.
MODELING, ANALYZING AND SAFETY ASPECTS OF TORSION AND NOISE EFFECTS ON ROUND ...msejjournal
Each material has its own effect and behavior on external impacts like heat, force, tension, compression, torsion etc. It is important to study and analyze these behaviors before selecting a material for an engineering application in the design aspects itself. If predicted values analyzed by both mathematical and software are available it is easy to get the reliable details in the pre design itself. By this one can ensure the safety of the component and the system also. In this investigation, the effects of torsional loads on mild steel
round shafts with various diameters and lengths have been analyzed. The additional effects like angle of rotation, rpm and duration also considered to find the optimum predicted value. The data observed by various experiments are analyzed by design of experiments especially by response surface methodology. Minitab software is used for canalization. The data are tabulated and kept for future reference. Noise effect
due to the gradual torsional load performed in the gear box and other rotating components is also studied for healthy working environment. The nature and characteristics of material also be explained by this noise analysis.
This document lists publications and presentations by K. Min and others. It includes 24 publications in journals from 1989-2005 on topics related to materials science and semiconductor fabrication. It also lists 32 presentations given by K. Min and collaborators at domestic and international conferences from 1988-2000 on similar topics such as ion implantation, thin film growth, and surface analysis techniques. The publications and presentations cover over a decade of research focused on materials characterization and processing methods.
This document summarizes research on using laser shock processing to treat fastener holes in aging aircraft structures. Laser shock processing uses high-intensity laser pulses to generate deep compressive residual stresses near the surface of metals. These compressive stresses can significantly increase fatigue life by inhibiting crack initiation and growth. The document describes how laser shock processing works and provides examples showing it dramatically improves fatigue life in aluminum alloys. It proposes applying the technique to fastener holes, which are high-stress locations prone to fatigue cracks. This could help extend the lifespan of aging aircraft by reducing failures originating at fastener holes.
Influence Of Surface Roughness On Ultra-High-Cycle Fatigue Of Aisi 4140 Steel.IJERA Editor
Low and high-cycle fatigue life regimes are well studied and are relatively well understood. However, recent fatigue studies on steels have shown that fatigue failures can occur at low amplitudes even below the conventional fatigue limit in the ultra-high-cycle fatigue range (life higher than 107 cycles). Fatigue life in the regime of 106 to 108 cycles-to-failure in terms of the influence of manufacturing processes on fatigue strength is examined. Specifically, the influence of surface roughness of turned surfaces of AISI 4140 steel specimens on fatigue strength in the giga cycle or ultra-high-cycle fatigue range is evaluated. The fatigue experiments were carried out at room temperature, with zero mean stress, on a rotating-bending fatigue testing machine of the constant bending moment type. The fatigue strength of the specimens were determined using the staircase (or up-and-down) method.
IRJET- Investigation on Dissimilar Metal Welding of Stainless Steel 316 L and...IRJET Journal
The document investigates dissimilar metal welding of stainless steel 316L and mild steel A-2062 using gas tungsten arc welding (GTAW). Sixteen samples were prepared with variations in welding speed, current, and gas pressure based on a Taguchi experimental design. Tensile testing found ultimate tensile strengths ranging from 394 to 454 MPa. Microhardness was slightly higher than the base materials in the weld zone and heat-affected zone. Microstructure analysis was conducted on samples with the highest ultimate tensile strength, highest heat input, and lowest heat input. The depth of penetration averaged 5.8484 mm and bead width averaged 4.8243 mm across samples.
IP BE III SEMESTER CBGS071219113858.pdfEshantiwari6
This document provides information about the credit based grading system for the third semester of the Bachelor of Engineering program in Industrial and Production Engineering at J Jalpur Engineering College, Jabalpur. It includes the subject distribution, credits, and maximum marks allotted for both theory and practical components. Details are provided for 8 subjects along with their codes, titles, lecture and tutorial hours per week, total credits, and breakdown of assessment. The document also includes sample pages for one of the subjects - Energy, Environment, Ecology and Society - providing more details on content, references, and experiments.
Orientation Effects of Stress Concentrators on the Material Deformation Beha...IJMER
Present investigation pertains to carry out to experimental work to generate data in order to
establish the mode of material deformation and fracture in AISI 316 stainless steel strips of 1.70mm thickness in
the presence of elliptical notches at the center of the specimen whose major axis were designed to incline to the
tensile axis at an angle of 0o
, 45o
and 90o
and the same happens to be the axis of rolling. An elliptical hole of
8.00mm (major axis) with 5.0mm (minor axis) were machined in each specimen so as to correspond to the above
angles of 0o
45o
and90o
and one specimen without any elliptical hole as a notch for comparative analysis of the experimental data. These flat specimens with and without stress concentrators were tested under tension using Hounsfield Tcnsomctcr and the changes in notch geometry have been recorded at various loadings. Further, the visual appearance of the cracks initiation have been continuously observed and recorded. The effect of stress ratio factors and the strain ratio parameters on the mode of fracture on material deformation in and around the stress concentrator has been thoroughly analyzed and it has been established that the crack initiation began either at the inner tips of the minor or the major axis of the elliptical stress concentrator, but, always perpendicular to the direction of loading irrespective of the rolling direction and the orientations of the stress concentrators. However, the changes in the rotation of the major and the minor axis of the elliptical stress concentrators were found to alter, and, this alteration in fact assisted in estimating the strains along the major as well as the minor axis of the stress concentrators. Relation between a plastic strain ratio with respect to the ratio between the major and the minor strains was observed to be of extremely complex nature. The overall observation in the present investigation has indicated that thin strips or sheet specimens containing a single or multiple or a combined type of stress concentrators will create a keen interest in the research approach of the investigators and make them aware of the seriousness of the presence of the stress concentrators and caution them to incorporate any possible design notifications in order to avoid any catastrophic failure (s).
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Gol Ali Naziripour has over 30 years of experience in teaching and research in electronics, physics, and materials science. He has taught a variety of subjects at the university level and has extensive experience in areas such as circuit analysis, amplifiers, optics, and medical physics. His research focuses on materials properties, thin film devices, and instrumentation/measurement equipment, especially regarding ferrites, superconductors, and tunable components. He holds a Ph.D. from the University of Dundee and has worked in both academic and industrial settings.
The document is a patent that describes a vapor phase deposition method and apparatus for applying thin film coatings to substrates. The method and apparatus provide precise metering of reactive vapor species into a coating chamber to form coatings in a controlled manner. This allows application of coatings for uses such as fabrication of electronic devices, MEMS, biosensors, microfluidic devices, and imprint lithography. The apparatus allows precise addition of different reactants sequentially or simultaneously during the coating formation process.
The document summarizes research on the friction and wear of metals under micro-abrasion and dry/wet sliding conditions. It includes an introduction describing the research objectives to characterize coefficient of friction (CoF) and wear rates of metals under different wear modes. The experimental procedure used a micro-abrasion tester to apply loads to metal samples in contact with a rotating steel ball under various conditions to produce different wear modes. Results found that pure rolling abrasion generated the highest wear rates while dry sliding abrasion produced the lowest wear rates and CoFs. The research concluded the tester was useful for evaluating CoF under different tribological pairs and conditions.
Dr. S. Joseph Antony is an Associate Professor at the University of Leeds who specializes in particulate mechanics, physics of powders and grains, and interdisciplinary research including biomechanics. He uses multi-scale modeling techniques like DEM, FEM, and MD simulations combined with experimental methods to study topics like nano mechanics, micro mechanics, granular materials, and powder technology. He has published over 50 papers in reputed international journals and serves on the editorial boards of several journals in his field. His research has been funded by several sponsors and aims to link particle-scale properties to macroscopic behavior of particulate systems.
GraphRAG for Life Science to increase LLM accuracyTomaz Bratanic
GraphRAG for life science domain, where you retriever information from biomedical knowledge graphs using LLMs to increase the accuracy and performance of generated answers
Skybuffer SAM4U tool for SAP license adoptionTatiana Kojar
Manage and optimize your license adoption and consumption with SAM4U, an SAP free customer software asset management tool.
SAM4U, an SAP complimentary software asset management tool for customers, delivers a detailed and well-structured overview of license inventory and usage with a user-friendly interface. We offer a hosted, cost-effective, and performance-optimized SAM4U setup in the Skybuffer Cloud environment. You retain ownership of the system and data, while we manage the ABAP 7.58 infrastructure, ensuring fixed Total Cost of Ownership (TCO) and exceptional services through the SAP Fiori interface.
5th LF Energy Power Grid Model Meet-up SlidesDanBrown980551
5th Power Grid Model Meet-up
It is with great pleasure that we extend to you an invitation to the 5th Power Grid Model Meet-up, scheduled for 6th June 2024. This event will adopt a hybrid format, allowing participants to join us either through an online Mircosoft Teams session or in person at TU/e located at Den Dolech 2, Eindhoven, Netherlands. The meet-up will be hosted by Eindhoven University of Technology (TU/e), a research university specializing in engineering science & technology.
Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
TrustArc Webinar - 2024 Global Privacy SurveyTrustArc
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See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
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Perfect for developers, AI enthusiasts, and tech leaders. Learn how to leverage MongoDB Atlas to deliver highly relevant, context-aware search results, transforming your data retrieval process. Stay ahead in tech innovation and maximize the potential of your applications.
#MongoDB #VectorSearch #AI #SemanticSearch #TechInnovation #DataScience #LLM #MachineLearning #SearchTechnology
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Crucial components like the kernel and shell are dissected, highlighting their indispensable functions in resource management and user interface interaction. Das elucidates how the kernel acts as the central nervous system, orchestrating process scheduling, memory allocation, and device management. Meanwhile, the shell serves as the gateway for user commands, bridging the gap between human input and machine execution. 💻
The narrative then shifts to a captivating exploration of prominent desktop OSs, Windows, macOS, and Linux. Windows, with its globally ubiquitous presence and user-friendly interface, emerges as a cornerstone in personal computing history. macOS, lauded for its sleek design and seamless integration with Apple's ecosystem, stands as a beacon of stability and creativity. Linux, an open-source marvel, offers unparalleled flexibility and security, revolutionizing the computing landscape. 🖥️
Moving to the realm of mobile devices, Das unravels the dominance of Android and iOS. Android's open-source ethos fosters a vibrant ecosystem of customization and innovation, while iOS boasts a seamless user experience and robust security infrastructure. Meanwhile, discontinued platforms like Symbian and Palm OS evoke nostalgia for their pioneering roles in the smartphone revolution.
The journey concludes with a reflection on the ever-evolving landscape of OS, underscored by the emergence of real-time operating systems (RTOS) and the persistent quest for innovation and efficiency. As technology continues to shape our world, understanding the foundations and evolution of operating systems remains paramount. Join Pravash Chandra Das on this illuminating journey through the heart of computing. 🌟
Digital Marketing Trends in 2024 | Guide for Staying AheadWask
https://www.wask.co/ebooks/digital-marketing-trends-in-2024
Feeling lost in the digital marketing whirlwind of 2024? Technology is changing, consumer habits are evolving, and staying ahead of the curve feels like a never-ending pursuit. This e-book is your compass. Dive into actionable insights to handle the complexities of modern marketing. From hyper-personalization to the power of user-generated content, learn how to build long-term relationships with your audience and unlock the secrets to success in the ever-shifting digital landscape.
Letter and Document Automation for Bonterra Impact Management (fka Social Sol...Jeffrey Haguewood
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This video focuses on automated letter generation for Bonterra Impact Management using Google Workspace or Microsoft 365.
Interested in deploying letter generation automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
HCL Notes and Domino License Cost Reduction in the World of DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-and-domino-license-cost-reduction-in-the-world-of-dlau/
The introduction of DLAU and the CCB & CCX licensing model caused quite a stir in the HCL community. As a Notes and Domino customer, you may have faced challenges with unexpected user counts and license costs. You probably have questions on how this new licensing approach works and how to benefit from it. Most importantly, you likely have budget constraints and want to save money where possible. Don’t worry, we can help with all of this!
We’ll show you how to fix common misconfigurations that cause higher-than-expected user counts, and how to identify accounts which you can deactivate to save money. There are also frequent patterns that can cause unnecessary cost, like using a person document instead of a mail-in for shared mailboxes. We’ll provide examples and solutions for those as well. And naturally we’ll explain the new licensing model.
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