Modeling And Finite Element Analysis Of Welding Distortions And Residual Stresses In Large And Complex Structures
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Modeling And Finite Element Analysis Of Welding Distortions And Residual Stresses In Large And Complex Structures
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Author : Jun Sun
language : en
Publisher:
Release Date : 2005
Modeling And Finite Element Analysis Of Welding Distortions And Residual Stresses In Large And Complex Structures written by Jun Sun and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
In Plane Shrinkage Strains And Their Effects On Welding Distortion In Thin Wall Structures
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Author : Wentao Cheng
language : en
Publisher:
Release Date : 2005
In Plane Shrinkage Strains And Their Effects On Welding Distortion In Thin Wall Structures written by Wentao Cheng and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Deformations (Mechanics) categories.
Abstract: It is difficult to achieve both fast and accurate distortion predictions in large welded structures. This research work was conducted to obtain better understanding and characterization of the plastic deformation that leads to in-plane shrinkage in thin-wall structures. It also aimed to develop a fast and accurate approach for predicting the welding distortion in large thin-wall structures, such automotive body structures. The finite element analysis (FEA) was the tool used in this work to study welding plastic deformation. Before finite element (FE) simulations were carried out for this purpose, a proper FE model was formulated and verified with experiments so that it was capable of rendering accurate distortion computation as well as capturing all the data necessary to investigate the plastic deformation. After verified by the experimental results, the FE model was utilized to perform the welding simulations of three types of simple joints including butt-welded plates, Tee joint, and plate with slot weld. The analysis results were extracted and analyzed to study the in-plane shrinkage and plastic behaviors. The plastic strain distributions were examined in combination with the peak temperatures experienced during welding and the material softening at elevated temperatures. The in-plane shrinkage was correlated to the distribution characteristics of plastic strains, and furthermore the relationships between the plastic strains and their influencing factors were established. The engineering approach was developed based on the findings obtained from the study described above. The research issue of central importance in developing the engineering approach was how to introduce the plastic deformation equivalent to the actual one into the FE model. Temperature load was used in this study and then the central issue became formulating the temperature load, namely its distribution including area of application and magnitude. The engineering approach was then used to predict the welding distortions of two automotive body structures. The predicted distortions were compared with the measurements and excellent agreements existed between them.
Residual Stress Analysis On Welded Joints By Means Of Numerical Simulation And Experiments
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Author : Paolo Ferro
language : en
Publisher: BoD – Books on Demand
Release Date : 2018-05-16
Residual Stress Analysis On Welded Joints By Means Of Numerical Simulation And Experiments written by Paolo Ferro and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-16 with Technology & Engineering categories.
The ability to quantify residual stresses induced by welding processes through experimentation or numerical simulation has become, today more than ever, of strategic importance in the context of their application to advanced design. This is an ongoing challenge that commenced many years ago. Recent design criteria endeavour to quantify the effect of residual stresses on fatigue strength of welded joints to allow a more efficient use of materials and a greater reliability of welded structures. The aim of the present book is contributing to these aspects of design through a collection of case-studies that illustrate both standard and advanced experimental and numerical methodologies used to assess the residual stress field in welded joints. The work is intended to be of assistance to designers, industrial engineers and academics who want to deepen their knowledge of this challenging topic.
State Of The Art Review
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Author : A. Yaghi
language : en
Publisher:
Release Date : 2005
State Of The Art Review written by A. Yaghi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Finite element method categories.
Predictive Formulae For Weld Distortion
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Author : G Verhaeghe
language : en
Publisher: Woodhead Publishing
Release Date : 1999-09-21
Predictive Formulae For Weld Distortion written by G Verhaeghe and has been published by Woodhead Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-09-21 with Technology & Engineering categories.
&Quot;The quantification of the level of distortion that can be expected after welding has become crucial to meet the increasingly stringent accuracy requirements for the design of any type of fabricated component or structure. Many research workers have formulated weld distortion prediction models in order to reduce the extent of practical trials required to determine actual distortion. Because of the large number of prediction models available, some guidance is required on the selection of appropriate models for a particular welding application. For this reason, this review of published weld prediction formulae has been carried out within the Core Research Programme of TWI. Whilst reviews have been carried out in the past, this summary differs in that it covers four types of distortion - longitudinal shrinkage, bowing distortion, transverse shrinkage and angular distortion. It provides a critical assessment of each of the models; highlighting where background information exists, whether the model has been validated and possible limitations. Based on the information available for each of the models and on TWI's knowledge and experience, one or more models are recommended for each type of distortion."--BOOK JACKET.
Analysis Of Welded Structures
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Author : Koichi Masubuchi
language : en
Publisher: Elsevier
Release Date : 2013-10-22
Analysis Of Welded Structures written by Koichi Masubuchi and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Technology & Engineering categories.
Analysis of Welded Structures: Residual Stresses, Distortion, and their Consequences encompasses several topics related to design and fabrication of welded structures, particularly residual stresses and distortion, as well as their consequences. This book first introduces the subject by presenting the advantages and disadvantages of welded structures, as well as the historical overview of the topic and predicted trends. Then, this text considers residual stresses, heat flow, distortion, fracture toughness, and brittle and fatigue fractures of weldments. This selection concludes by discussing the effects of distortion and residual stresses on buckling strength of welded structures and effects of weld defects on service behavior. This book also provides supplementary discussions on some related and selected subjects. This text will be invaluable to metallurgists, welders, and students of metallurgy and welding.
Analysis Of Welded Structures
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Author : Koichi Masubuchi
language : en
Publisher: Pergamon
Release Date : 1980
Analysis Of Welded Structures written by Koichi Masubuchi and has been published by Pergamon this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Deformations (Mechanics) categories.
Finite Element Simulation Of Residual Stresses From Welding And High Frequency Hammer Peening
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Author : Gkatzogiannis, Stefanos
language : en
Publisher: KIT Scientific Publishing
Release Date : 2022-06-30
Finite Element Simulation Of Residual Stresses From Welding And High Frequency Hammer Peening written by Gkatzogiannis, Stefanos and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-06-30 with Technology & Engineering categories.
Research goal of the present monograph is the establishment of an efficient engineering approach, which will include straightforward but accurate simulation models, in order to estimate the residual stress fields of welded joints introduced during welding and their post-weld treatment with High Frequency Hammer Peening. The present subject lies on the intersection of structural engineering, material science and computational mechanics.
Minimization Of Welding Distortion And Buckling
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Author : Pan Michaleris
language : en
Publisher: Elsevier
Release Date : 2011-05-25
Minimization Of Welding Distortion And Buckling written by Pan Michaleris and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-05-25 with Technology & Engineering categories.
Welding is a cost-effective and flexible method of fabricating large structures, but drawbacks such as residual stress, distortion and buckling must be overcome in order to optimize structural performance. Minimization of welding distortion and buckling provides a systematic overview of the methods of minimizing distortion and buckling in welded structures. Following an introductory chapter, part one focuses on understanding welding stress and distortion, with chapters on such topics as computational welding mechanics, modelling the effect of phase transformations on welding stress and distortion and using computationally efficient reduced-solution methods to understand welding distortion. Part two covers different methods of minimizing welding distortion. Chapters discuss methods such as differential heating for minimizing distortion in welded stiffeners, dynamic thermal tensioning, reverse-side heating and ways of minimizing buckling such as weld cooling and hybrid laser arc welding. With its distinguished editor and international team of contributors, Minimization of welding distortion and buckling is an essential reference for all welders and engineers involved in fabrication of metal end-products, as well as those in industry and academia with a research interest in the area. Provides a systematic overview of the methods of minimizing distortion and buckling in welded structures Focuses on understanding welding stress and distortion featuring computational welding mechanics and modelling the effect of phase transformations Explores different methods of minimizing welding distortion discussing differential heating and dynamic thermal tensioning
Advanced Joining Processes
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Author : Lucas F. M. da Silva
language : en
Publisher: Elsevier
Release Date : 2020-10-31
Advanced Joining Processes written by Lucas F. M. da Silva and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-10-31 with Technology & Engineering categories.
Advanced Joining Processes: Welding, Plastic Deformation, and Adhesion brings together a range of advanced thermal, mechanical, and chemical methods of joining, offering an up-to-date resource for those looking to understand and utilize the very latest techniques. Efficient joining techniques are critical to a range of innovative applications, with technology in constant development. The first section of the book provides in-depth information on advanced welding techniques, including friction stir, explosive, ultrasonic, laser, electron beam, and computational weld analysis and fatigue of structures. The second section highlights key developments in joining by plastic deformation, adhesive bonding, and hybrid joining. The coverage of each technique is supported by practical guidance, detailed analysis, and finite element simulations. This is an essential reference for researchers and advanced students in joining, welding, adhesion, materials processing, mechanical engineering, plastics engineering, manufacturing, civil engineering, and automotive/aerospace engineering, as well as engineers, scientists, and R&D professionals, using joining, welding, and adhesion methods, across a range of industries. Presents the latest research findings and developments across welding, joining by plastic deformation, and adhesion Includes state-of-the-art methods, such as laser, ultrasonic and electron beam welding, hybrid joining, and the use of electromagnetic pulses Offers practical guidance, detailed analysis, and finite element simulations, for all techniques covered