Modeling in Welding, Hot Powder Forming, and Casting

Modeling in Welding, Hot Powder Forming, and Casting
Author: Lennart Karlsson
Publisher: ASM International(OH)
Total Pages: 336
Release: 1997
Genre: Mathematics
ISBN:

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This reference work provides thorough coverage of the theoretical foundations of thermomechanical modeling of welding, hot powder forming, and casting processes, which also can be applied to modeling of the heat treatment and forging of solids. Information on finite element modeling methods will assist design engineers in taking manufacturing processes into consideration to minimize residual stresses and deformation in the design of mechanical components. Contents include: Thermomechanical modeling Thermal modeling of welds Mechanical modeling of welding and residual stresses in welds Metallurgical and mechanical consequences of phase transformations in numerical simulations of welding processes Predicting and measuring methods of two- and three-dimensional residual stresses by using inherent strain as a parameter Hot isostatic pressing Hot powder forging Modeling of heat transfer, fluid flow, and thermodynamics in casting Stresses in castings Thermomechanical modeling in casting with experimental validation.

Computational Welding Mechanics

Computational Welding Mechanics
Author: Lars-Erik Lindgren
Publisher: Elsevier
Total Pages: 246
Release: 2014-01-23
Genre: Computers
ISBN: 1845693558

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Computational welding mechanics (CWM) provides an important technique for modelling welding processes. Welding simulations are a key tool in improving the design and control of welding processes and the performance of welded components or structures. CWM can be used to model phenomena such as heat generation, thermal stresses and large plastic deformations of components or structures. It also has a wider application in modelling thermomechanical and microstructural phenomena in metals. This important book reviews the principles, methods and applications of CWM. The book begins by discussing the physics of welding before going on to review modelling methods and options as well as validation techniques. It also reviews applications in areas such as fatigue, buckling and deformation, improved service life of components and process optimisation. Some of the numerical methods described in the book are illustrated using software available from the author which allows readers to explore CWM in more depth. Computational welding mechanics is a standard work for welding engineers and all those researching welding processes and wider thermomechanical and microstructural phenomena in metals. Highlights the principles, methods and applications of CWM Discusses the physics of welding Assesses modelling methods and validation techniques

Comprehensive Structural Integrity

Comprehensive Structural Integrity
Author: Ian Milne
Publisher: Elsevier
Total Pages: 4647
Release: 2003-07-25
Genre: Business & Economics
ISBN: 0080490735

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The aim of this major reference work is to provide a first point of entry to the literature for the researchers in any field relating to structural integrity in the form of a definitive research/reference tool which links the various sub-disciplines that comprise the whole of structural integrity. Special emphasis will be given to the interaction between mechanics and materials and structural integrity applications. Because of the interdisciplinary and applied nature of the work, it will be of interest to mechanical engineers and materials scientists from both academic and industrial backgrounds including bioengineering, interface engineering and nanotechnology. The scope of this work encompasses, but is not restricted to: fracture mechanics, fatigue, creep, materials, dynamics, environmental degradation, numerical methods, failure mechanisms and damage mechanics, interfacial fracture and nano-technology, structural analysis, surface behaviour and heart valves. The structures under consideration include: pressure vessels and piping, off-shore structures, gas installations and pipelines, chemical plants, aircraft, railways, bridges, plates and shells, electronic circuits, interfaces, nanotechnology, artificial organs, biomaterial prostheses, cast structures, mining... and more. Case studies will form an integral part of the work.

Handbook of Residual Stress and Deformation of Steel

Handbook of Residual Stress and Deformation of Steel
Author: George E. Totten
Publisher: ASM International
Total Pages: 496
Release: 2002
Genre: Technology & Engineering
ISBN: 1615032274

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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)

Processes and Mechanisms of Welding Residual Stress and Distortion

Processes and Mechanisms of Welding Residual Stress and Distortion
Author: Z Feng
Publisher: Elsevier
Total Pages: 363
Release: 2005-10-10
Genre: Science
ISBN: 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

Minimization of Welding Distortion and Buckling

Minimization of Welding Distortion and Buckling
Author: Pan Michaleris
Publisher: Elsevier
Total Pages: 319
Release: 2011-05-25
Genre: Technology & Engineering
ISBN: 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

Welding Deformation and Residual Stress Prevention

Welding Deformation and Residual Stress Prevention
Author: Ninshu Ma
Publisher: Elsevier
Total Pages: 313
Release: 2012-04-26
Genre: Technology & Engineering
ISBN: 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.

Modeling and Control of Casting and Welding Processes IV

Modeling and Control of Casting and Welding Processes IV
Author: Anthony F. Giamei
Publisher:
Total Pages: 1090
Release: 1988
Genre: Technology & Engineering
ISBN:

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Proceedings of the fourth topical symposium held in Palm Coast, Florida, April, 1988. The advanced computer models which make it possible to control casting and welding processing and to utilize computer aided automation for both established and emerging technologies are covered in-depth by more tha

Modeling of Casting, Welding, and Advanced Solidification Processes VIII

Modeling of Casting, Welding, and Advanced Solidification Processes VIII
Author: Brian G. Thomas
Publisher: Tms
Total Pages: 1267
Release: 1998-01-01
Genre: Technology & Engineering
ISBN: 9780873394079

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Sponsored by the Engineering Foundation, this conference series has documented the advance of casting models. The Eighth International Conference on Modeling of Casting, Welding and Advanced Solidification Processes proceedings cover most casting processes that involve liquid-solid phase change in metals, describing models of phenomenon important to casting and using a wide range of modeling tools and commercial software.