Welding Deformation and Residual Stress Prevention

Welding Deformation and Residual Stress Prevention PDF

Author: Ninshu Ma

Publisher: Butterworth-Heinemann

Published: 2022-07-27

Total Pages: 476

ISBN-13: 0323886507

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Welding Deformation and Residual Stress Prevention, Second Edition provides readers with both fundamental theoretical knowledge about welding deformation and stress as well as unique computational approaches for predicting and mitigating the effects of deformation and residual stress on materials. This second edition has been updated to include new techniques and applications, outlining advanced finite element methods such as implicit scheme, explicit scheme, and hybrid scheme, and coupling analysis among thermal-metallurgy-mechanics. Non-destructive measurement methods for residual stresses are introduced, such as X-ray diffraction, the indentation technique, the neutron diffraction method, and various synchrotron X-ray diffraction techniques. Destructive measurement techniques are covered as well, such as block cutting for releasing residual stress, blind hole drilling, deep hole drilling, the slit cutting method, sectional contour method, and general inherent strain method. Various industrial applications of the material behavior and computational approaches are featured throughout. Focuses on the underlying theory, practical implementation, analysis and application of measurement techniques for welding deformation and residual stress Includes strategies for mitigation and control of deformation and stress Discusses cutting-edge computational methods for determining welding heat source, thermal process, phase transformation, welding thermal deformation, thermal stress, and residual states Outlines both non-destructive and destructive techniques for measuring residual stress Includes access to a companion site with code, simulation videos and other materials

Welding Deformation and Residual Stress Prevention

Welding Deformation and Residual Stress Prevention PDF

Author: Ninshu Ma

Publisher: Elsevier

Published: 2012-04-26

Total Pages: 313

ISBN-13: 0123948207

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Generally, welding produces welding deformation and residual stress in the products, which influences the quality and performance of the products. Although many engineers and researchers have made great effort how to control these incidents, they have still remained unresolved. Welding Deformation and Residual Stress Prevention provides a unique computational approach to the prediction of the effects of deformation and residual stress on materials. The goal is to provide engineers and designers with the ability to create their own computational system for predicting and possibly avoiding the problem altogether. The basic theories including "theory of elastic-plastic analysis" and "inherent strain theory" , and analysis procedures are described using a simple three-bar model Online simulation software to perform basic analysis on welding mechanics Examples of strategic methods and procedures are illustrated to have solved various welding-related problems encountered in the process of construction Appendices present data bases for welding residual stresses, temperature dependent material properties, etc.

Processes and mechanisms of welding residual stress and distortion

Processes and mechanisms of welding residual stress and distortion PDF

Author: Zhili Feng

Publisher: CRC Press

Published: 2005-11-01

Total Pages: 372

ISBN-13: 9780849334672

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As a fabrication technology, welding presents a number of technical challenges to the designer, manufacturer, and end-user of the welded structures. Both weld residual stress and distortion can significantly impair the performance and reliability of the welded structures. They must be properly dealt with during design, fabrication, and in-service use of the welded structures. There have been many significant and exciting developments on the subject in the past ten to fifteen years. Measurement techniques have been improved significantly. More importantly, the development of computational welding mechanics methods has been phenomenal. The progresses in the last decade or so have not only greatly expanded our fundamental understanding of the processes and mechanisms of residual stress and distortion during welding, but also have provided powerful tools to quantitatively determine the detailed residual stress and distortion information for a given welded structure. New techniques for effective residual stress and distortion mitigations and controls have also been applied in different industry sectors. Processes and Mechanisms of Welding Residual Stress and Distortion provides a comprehensive summary on the developments in the subject. It outlines theoretical treatments on heat transfer, solid mechanics and materials behavior that are essential for understanding and determining the welding residual stress and distortion. The approaches for computational methods and analysis methodology are described so that non specialists can follow them. There are chapters devoted to the discussion of various techniques for control and mitigation of residual stress and distortion, and residual stress and distortion results for various typical welded structures are provided. The second half of the book looks at case studies and practical solutions and provides insights into the techniques, challenges, limitations and future trends of each application. This book will not only be useful for advanced analysis of the subject, but also provide sufficient examples and practical solutions for welding engineers. With a panel of leading experts this authoritative book will be a valuable resource for welding engineers and designers as well as academics working in the fields of structural and mechanical engineering.

Minimization of Welding Distortion and Buckling

Minimization of Welding Distortion and Buckling PDF

Author: Pan Michaleris

Publisher: Elsevier

Published: 2011-05-25

Total Pages: 319

ISBN-13: 0857092901

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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

Processes and Mechanisms of Welding Residual Stress and Distortion

Processes and Mechanisms of Welding Residual Stress and Distortion PDF

Author: Z Feng

Publisher: Elsevier

Published: 2005-10-10

Total Pages: 363

ISBN-13: 1845690931

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Measurement techniques for characterisation of residual stress and distortion have improved significantly. More importantly the development and application of computational welding mechanics have been phenomenal. Through the collaboration of experts, this book provides a comprehensive treatment of the subject. It develops sufficient theoretical treatments on heat transfer, solid mechanics and materials behaviour that are essential for understanding and determining welding residual stress and distortion. It will outline the approach for computational analysis that engineers with sufficient background can follow and apply. The book is useful for advanced analysis of the subject and provide examples and practical solutions for welding engineers. A comprehensive summary of developments in this subject Includes case studies and practical solutions Compiled by a worldwide panel of experts

FE Computation on Accuracy Fabrication of Ship and Offshore Structure Based on Processing Mechanics

FE Computation on Accuracy Fabrication of Ship and Offshore Structure Based on Processing Mechanics PDF

Author: Hong ZHOU

Publisher: Springer Nature

Published: 2021-08-12

Total Pages: 224

ISBN-13: 9811640874

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This book provides insight on processing mechanics during ship and offshore structure, and researchers, scientists, and engineers in the field of manufacturing process mechanics can benefit from the book. This book is written by subject experts based on the recent research results in FE computation on accuracy fabrication of ship and offshore structures based on processing mechanics. In order to deal with actual engineering problems during construction of ship and offshore structure, it proposes advanced computational approaches such as thermal elastic–plastic and elastic FE computations and employed to examine physical behavior and clarifies generation mechanism of mechanical response. As such, this book provides valuable knowledge, useful methods, and practical algorithms that can be considered in manufacturing process mechanics.

Intelligent Technologies and Applications

Intelligent Technologies and Applications PDF

Author: Filippo Sanfilippo

Publisher: Springer Nature

Published: 2022-07-22

Total Pages: 436

ISBN-13: 3031105257

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This book constitutes the refereed proceedings of the 4th International Conference on Intelligent Technologies and Applications, INTAP 2021, held in Grimstad, Norway, October 11–13, 2021. The 33 full papers included in this book were carefully reviewed and selected from 243 submissions. They were organized in topical sections as follows: Intelligence, Decision support systems, IoT; Robotics; ML and AI for Intelligent Health, Applications of intelligent technologies in Emergency Management; Smart Electrical Energy Systems, AI and ML in Security; ML and AI for sensing technologies, Social Media Analytics; ML in energy sectors and materials; and Miscellaneous.

Advances in Fracture and Failure Prevention

Advances in Fracture and Failure Prevention PDF

Author: Kikuo Kishimoto

Publisher: Trans Tech Publications Ltd

Published: 2004-04-15

Total Pages: 1754

ISBN-13: 3035706247

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Volume is indexed by Thomson Reuters CPCI-S (WoS). The Far East and Oceanic Fracture Society (FEOFS) and the Center for Physics and Chemistry of Fracture and Failure Prevention (PCFP) jointly organized a pair of conferences, FEOFS 2003 and 2nd ICPCF, on October 20-22 at Tohoku University, Sendai, Japan.