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Welding Deformation and Residual Stress Prevention

Welding Deformation and Residual Stress Prevention
  • Author : Yukio Ueda,Hidekazu Murakawa,Ninshu Ma
  • Publisher :Unknown
  • Release Date :2012-04-26
  • Total pages :312
  • ISBN : 9780123948205
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Summary : 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.

Residual Stresses in Friction Stir Welding

Residual Stresses in Friction Stir Welding
  • Author : Nilesh Kumar,Rajiv S. Mishra,John A. Baumann
  • Publisher :Unknown
  • Release Date :2013-11-20
  • Total pages :60
  • ISBN : 9780128007327
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Summary : This book describes the fundamentals of residual stresses in friction stir welding and reviews the data reported for various materials. Residual stresses produced during manufacturing processes lead to distortion of structures. It is critical to understand and mitigate residual stresses. From the onset of friction stir welding, claims have been made about the lower magnitude of residual stresses. The lower residual stresses are partly due to lower peak temperature and shorter time at temperature during friction stir welding. A review of residual stresses that result from the friction stir process and strategies to mitigate it have been presented. Friction stir welding can be combined with additional in-situ and ex-situ manufacturing steps to lower the final residual stresses. Modeling of residual stresses highlights the relationship between clamping constraint and development of distortion. For many applications, management of residual stresses can be critical for qualification of component/structure. Reviews magnitude of residual stresses in various metals and alloys Discusses mitigation strategies for residual stresses during friction stir welding Covers fundamental origin of residual stresses and distortion

Residual Stress Analysis on Welded Joints by Means of Numerical Simulation and Experiments

Residual Stress Analysis on Welded Joints by Means of Numerical Simulation and Experiments
  • Author : Paolo Ferro,Filippo Berto
  • Publisher :Unknown
  • Release Date :2018-05-16
  • Total pages :162
  • ISBN : 9781789231069
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Summary : 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.

Processes and mechanisms of welding residual stress and distortion

Processes and mechanisms of welding residual stress and distortion
  • Author : Zhili Feng
  • Publisher :Unknown
  • Release Date :2005-11-01
  • Total pages :350
  • ISBN : 0849334675
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Summary : 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.

Maritime Technology and Engineering

Maritime Technology and Engineering
  • Author : Carlos Guedes Soares,T.A. Santos
  • Publisher :Unknown
  • Release Date :2014-09-30
  • Total pages :1450
  • ISBN : 9781315731599
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Summary : Maritime Technology and Engineering includes the papers presented at the 2nd International Conference on Maritime Technology and Engineering (MARTECH 2014, Lisbon, Portugal, 15-17 October 2014). The contributions reflect the internationalization of the maritime sector, and cover a wide range of topics: Ports; Maritime transportation; Inland navigat

Advances in Fracture and Failure Prevention

Advances in Fracture and Failure Prevention
  • Author : Kikuo Kishimoto,Masanori Kikuchi,Tetsuo Shoji,Masumi Saka
  • Publisher :Unknown
  • Release Date :2004-04-15
  • Total pages :1754
  • ISBN : 9783035706246
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Summary : 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.

Design & Analysis of ITER Shield Blanket

Design & Analysis of ITER Shield Blanket
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :1998
  • Total pages :97
  • ISBN : UCSD:31822029549235
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Summary :

A Teaching Essay on Residual Stresses and Eigenstrains

A Teaching Essay on Residual Stresses and Eigenstrains
  • Author : Alexander M. Korsunsky
  • Publisher :Unknown
  • Release Date :2017-06-08
  • Total pages :212
  • ISBN : 9780128109915
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Summary : Residual stresses are an important subject in materials science and engineering that has implications across disciplines, from quantum dots to human teeth, from aeroengines to automotive surface finishing. Although a number of monographs exist, no resource is available in the form of a book to serve as a good basis for teaching the fundamentals. A Teaching Essay on Residual Stresses and Eigenstrains introduces eigenstrain methods as a powerful unified approach to residual stress modeling, measurement, and management. Starting with simple residual stress states, the key relationships are elucidated between deformation processes, inelastic strains (eigenstrains) these may introduce, and the resulting residual stress states. This book is written not only for the materials scientist, mechanical engineer, and student seeking to appreciate the origins of residual stress, but also for the more mature researcher and industrial engineer looking to improve their understanding of the eigenstrain approach to describing residual stress. Provides a unified basis for understanding the fundamentals of residual stress origins and consequences Introduces a classification of the most important residual stress states and their efficient description, as well as discussing measurement approaches, their limitations, and uses Approaches the nature and application of eigenstrain methods in a systematic way to describe residual stress fields

Handbook of Residual Stress and Deformation of Steel

Handbook of Residual Stress and Deformation of Steel
  • Author : George E. Totten
  • Publisher :Unknown
  • Release Date :2002
  • Total pages :499
  • ISBN : 9781615032273
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Summary : Annotation Examines the factors that contribute to overall steel deformation problems. The 27 articles address the effect of materials and processing, the measurement and prediction of residual stress and distortion, and residual stress formation in the shaping of materials, during hardening processes, and during manufacturing processes. Some of the topics are the stability and relaxation behavior of macro and micro residual stresses, stress determination in coatings, the effects of process equipment design, the application of metallo- thermo-mechanic to quenching, inducing compressive stresses through controlled shot peening, and the origin and assessment of residual stresses during welding and brazing. Annotation c. Book News, Inc., Portland, OR (booknews.com)

Heat Effects of Welding

Heat Effects of Welding
  • Author : Dieter Radaj
  • Publisher :Unknown
  • Release Date :2012-12-06
  • Total pages :348
  • ISBN : 9783642486401
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Summary : Almost all welding technology depends upon the use of concentrated energy sources to fuse or soften the material locally at the joint, before such energy can be diffused or dispersed elsewhere. Although comprehensive treatments of transient heat flow as a controlling influence have been developed progressively and published over the past forty years, the task of uniting the results compactly within a textbook has become increasingly formidable. With the comparative scarcity of such works, welding engineers have been denied the full use of powerful design analysis tools. During the past decade Dr Radaj has prepared to fulfil this need, working from a rich experience as pioneer researcher and teacher, co-operator with Professor Argyris at Stuttgart University in developing the finite element method for stress analysis of aircraft and power plant structures, and more recently as expert consultant on these and automotive structures at Daimler Benz. His book appeared in 1988 in the German language, and this updated English language edition will significantly increase the availability of the work.

Minimization of Welding Distortion and Buckling

Minimization of Welding Distortion and Buckling
  • Author : Pan Michaleris
  • Publisher :Unknown
  • Release Date :2011-05-25
  • Total pages :308
  • ISBN : 9780857092908
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Summary : 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

Computational Welding Mechanics

Computational Welding Mechanics
  • Author : John A. Goldak,Mehdi Akhlaghi
  • Publisher :Unknown
  • Release Date :2006-07-04
  • Total pages :322
  • ISBN : 9780387232881
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Summary : Computational Welding Mechanics (CWM) provides readers with a complete introduction to the principles and applications of computational welding including coverage of the methods engineers and designers are using in computational welding mechanics to predict distortion and residual stress in welded structures, thereby creating safer, more reliable and lower cost structures. Drawing upon years of practical experience and the study of computational welding mechanics the authors instruct the reader how to: - understand and interpret computer simulation and virtual welding techniques including an in depth analysis of heat flow during welding, microstructure evolution and distortion analysis and fracture of welded structures, - relate CWM to the processes of design, build, inspect, regulate, operate and maintain welded structures, - apply computational welding mechanics to industries such as ship building, natural gas and automobile manufacturing. Ideally suited for practicing engineers and engineering students, Computational Welding Mechanics is a must-have book for understanding welded structures and recent technological advances in welding, and it provides a unified summary of recent research results contributed by other researchers.

Automatic Welding

Automatic Welding
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :1982
  • Total pages :229
  • ISBN : UIUC:30112008821081
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Summary :

Failure Prevention and Reliability, 1989

Failure Prevention and Reliability, 1989
  • Author : American Society of Mechanical Engineers. Reliability, Stress Analysis, and Failure Prevention Committee
  • Publisher :Unknown
  • Release Date :1989
  • Total pages :274
  • ISBN : UOM:39015015321584
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Summary :

Failure Prevention and Reliability

Failure Prevention and Reliability
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :1989
  • Total pages :229
  • ISBN : STANFORD:36105001846687
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Summary :

Transactions of JWRI.

Transactions of JWRI.
  • Author : 大阪大学. 溶接工学研究所
  • Publisher :Unknown
  • Release Date :2013
  • Total pages :229
  • ISBN : OSU:32435086525912
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Summary :

Residual Stress and Stress Relaxation

Residual Stress and Stress Relaxation
  • Author : Eric Kula
  • Publisher :Unknown
  • Release Date :2013-11-21
  • Total pages :535
  • ISBN : 9781489918840
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Summary : The Army Materials and Mechanics Research Center in coop eration with the Materials Science Group of the Department of Chemical Engineering and Materials Science of Syracuse University has been conducting the Annual Sagamore Army Materials Research Conference since 1954. The specific purpose of these conferences has been to bring together scientists and engineers from academic institutions, industry and government who are uniquely qualified to explore in depth a subject of importance to the Department of Defense, the Army and the scientific community. These proceedings, entitled RESIDUAL STRESS AND STRESS RELAXATION, address the nature of residual stresses and their measurements, the sources of residual stress, stress relaxation, sub-critical crack growth in the presence of residual stress, residual stresses and properties, and research in progress. We wish to acknowledge the assistance of Mr. Dan McNaught of the Army Materials and Mechanics Research Center and Mr. Robert J. Sell and Helen Brown DeMascio of Syracuse University throughout the stages of the conference planning and finally the publication of the book. The continued active interest and support of these conferences by Dr. E. Wright, Director of the Army Materials and Mechanics Research Center, is appreciated.

Analysis of Welded Structures

Analysis of Welded Structures
  • Author : Koichi Masubuchi
  • Publisher :Unknown
  • Release Date :1980
  • Total pages :642
  • ISBN : UOM:39015000456957
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Summary :

Directory of University Professors and Researchers in Japan

Directory of University Professors and Researchers in Japan
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :1982
  • Total pages :229
  • ISBN : STANFORD:36105030055177
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Summary :

Computational Weld Mechanics, Constraint, and Weld Fracture

Computational Weld Mechanics, Constraint, and Weld Fracture
  • Author : F. Brust,Pingsha Dong
  • Publisher :Unknown
  • Release Date :2002
  • Total pages :202
  • ISBN : UOM:39015051920091
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Summary : Annotation These 26 technical papers from the August 2002 conference present novel analytical and experimental methods related to fracture mechanics, computational weld mechanics, and residual stresses for evaluation of the structural integrity and reliability of pressure vessels and piping. Bi-metallic welds, finite elements and constraint effects on fracture, and large scale weld modeling of structures are addressed. Topics include fracture assessment of a clad steel using the SINTAP procedure, lump pass welding simulation technology for shipbuilding applications, and the determination of constraint-modified J-R curves for carbon steel storage tanks. No subject index. Annotation c. Book News, Inc., Portland, OR (booknews.com).

Metals Abstracts

Metals Abstracts
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :1995
  • Total pages :229
  • ISBN : CORNELL:31924074648258
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Summary :