Author: Horst-Hannes Cerjak
Publisher:
ISBN: 9783902465696
Category :
Languages : en
Pages : 1169

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Book Description

Author: H. Cerjak
Publisher: CRC Press
ISBN: 1040290914
Category : Technology & Engineering
Languages : en
Pages : 697

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Book Description
Contains the papers presented at the fourth International Seminar "Numerical Analysis of Weldability" held in September 1997 at Schloss Seggau near Graz, Austria.

Author: Victor A. Karkhin
Publisher: Springer
ISBN: 9811359652
Category : Technology & Engineering
Languages : en
Pages : 492

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Book Description
This book describes and systemizes analytical and numerical solutions for a broad range of instantaneous and continuous, stationary and moving, concentrated and distributed, 1D, 2D and 3D heat sources in semi-infinite bodies, thick plane layers, thin plates and cylinders under various boundary conditions. The analytical solutions were mainly obtained by the superimposing principle for various parts of the proposed 1D, 2D and 3D heat sources and based on the assumption that only heat conduction plays a major role in the thermal analysis of welds. Other complex effects of heat transfer in weld phenomena are incorporated in the solutions by means of various geometrical and energetic parameters of the heat source. The book is divided into 13 chapters. Chapter 1 briefly reviews various welding processes and the energy characteristics of welding heat sources, while Chapter 2 covers the main thermophysical properties of the most commonly used alloys. Chapter 3 describes the physical fundamentals of heat conduction during welding, and Chapter 4 introduces several useful methods for solving the problem of heat conduction in welding. Chapters 5 and 6 focus on the derivation of analytical solutions for many types of heat sources in semi-infinite bodies, thick plane layers, thin plates and cylinders under various boundary conditions. The heat sources can be instantaneous or continuous, stationary or moving, concentrated or distributed (1D, 2D or 3D). In Chapter 7 the temperature field under programmed heat input (pulsed power sources and weaving sources) is analyzed. In turn, Chapters 8 and 9 cover the thermal cycle, melting and solidification of the base metal. Heating and melting of filler metal are considered in Chapter 10. Chapter 11 addresses the formulation and solution of inverse heat conduction problems using zero-, first- and second-order algorithms, while Chapter 12 focuses on applying the solutions developed here to the optimization of welding conditions. In addition, case studies confirm the usefulness and feasibility of the respective solutions. Lastly, Chapter 13 demonstrates the prediction of local microstructure and mechanical properties of welded joint metals, while taking into account their thermal cycle. The book is intended for all researches, welding engineers, mechanical design engineers, research engineers and postgraduate students who deal with problems such as microstructure modeling of welds, analysis of the mechanical properties of welded metals, weldability, residual stresses and distortions, optimization of welding and allied processes (prewelding heating, cladding, thermal cutting, additive technologies, etc.). It also offers a useful reference guide for software engineers who are interested in writing application software for simulating welding processes, microstructure modeling, residual stress analysis of welds, and for robotic-welding control systems.

Author: Lars-Erik Lindgren
Publisher: Elsevier
ISBN: 1845693558
Category : Computers
Languages : en
Pages : 246

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Book Description
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

Author: Jean-Michel Bergheau
Publisher: John Wiley & Sons
ISBN: 1118578805
Category : Mathematics
Languages : en
Pages : 364

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Book Description
The numerical simulation of manufacturing processes and of their mechanical consequences is of growing interest in industry. However, such simulations need the modeling of couplings between several physical phenomena such as heat transfer, material transformations and solid or fluid mechanics, as well as to be adapted to numerical methodologies. This book gathers a state of the art on how to simulate industrial processes, what data are needed and what numerical simulation can bring. Assembling processes such as welding and friction stir welding, material removal processes, elaboration processes of composite structures, sintering processes, surface-finishing techniques, and thermo-chemical treatments are investigated. This book is the work of a group of researchers who have been working together in this field for more than 12 years. It should prove useful for both those working in industry and those studying the numerical methods applied to multiphysics problems encountered in manufacturing processes.

Author: Stan A. David
Publisher: ASM International
ISBN: 1615031308
Category : Technology & Engineering
Languages : en
Pages : 833

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Book Description

Author: Sabar Hutagalung
Publisher: BoD – Books on Demand
ISBN: 9535101935
Category : Technology & Engineering
Languages : en
Pages : 339

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Book Description
Materials are important to mankind because of the benefits that can be derived from the manipulation of their properties, for example electrical conductivity, dielectric constant, magnetization, optical transmittance, strength and toughness. Materials science is a broad field and can be considered to be an interdisciplinary area. Included within it are the studies of the structure and properties of any material, the creation of new types of materials, and the manipulation of a material's properties to suit the needs of a specific application. The contributors of the chapters in this book have various areas of expertise. therefore this book is interdisciplinary and is written for readers with backgrounds in physical science. The book consists of fourteen chapters that have been divided into four sections. Section one includes five chapters on advanced materials and processing. Section two includes two chapters on bio-materials which deal with the preparation and modification of new types of bio-materials. Section three consists of three chapters on nanomaterials, specifically the study of carbon nanotubes, nano-machining, and nanoparticles. Section four includes four chapters on optical materials.

Author: FernD.S. Marquis
Publisher: Springer
ISBN: 3319487647
Category : Technology & Engineering
Languages : en
Pages : 3431

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Book Description
PRICM-8 features the most prominent and largest-scale interactions in advanced materials and processing in the Pacific Rim region. The conference is unique in its intrinsic nature and architecture which crosses many traditional discipline and cultural boundaries. This is a comprehensive collection of papers from the 15 symposia presented at this event.

Author: Ben Young
Publisher: CRC Press
ISBN: 1439862982
Category : Technology & Engineering
Languages : en
Pages : 760

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Book Description
Tubular Structures XIII contains the latest scientific and engineering developments in the field of tubular steel structures, as presented at the 13th International Symposium on Tubular Structures (ISTS13), Hong Kong, 15 - 17 December 2010. The International Symposium on Tubular Structures (ISTS) has a longstanding reputation for being the pri

Author: H. Cerjak
Publisher: CRC Press
ISBN: 9781861250605
Category : Mathematics
Languages : en
Pages : 712

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Book Description
Contains the papers presented at the fourth International Seminar "Numerical Analysis of Weldability" held in September 1997 at Schloss Seggau near Graz, Austria.