Download or read book Mechanics of Sheet Metal Forming written by D. Koistinen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume records the proceedings of an international symposium on "ME CHANICS OF SHEET METAL FORMING: Material Behavior and Deformation Analysis." It was sponsored and held at the General Motors Research Labora tories on October 17-18, 1977. This symposium was the twenty-first in an annual series. The objective of this symposium was to discuss the research frontiers in experimental and theoretical methods of sheet metal forming analysis and, also, to determine directions of future research to advance technology that would be useful in metal stamping plants. Metal deformation analyses which provide guide lines for metal flanging are already in use. Moreover, recent advances in computer techniques for solving plastic flow equations and in measurements of material parameters are leading to dynamic models of many stamping operations. These models would accurately predict the stresses and strains in the sheet as a function of punch travel. They would provide the engineer with the knowledge he needs to improve die designs. The symposium papers were organized into five sessions: the state of the art, constitutive relations of sheet metal, role of friction, sheet metal formability, and deformation analysis of stamping operations. We believe this volume not only summarizes the various viewpoints at the time of the symposium, but also pro vides an outlook for materials and mechanics research in the future.
Download or read book Metal Forming and the Finite Element Method written by the late Shiro Kobayashi and published by Oxford University Press. This book was released on 1989-03-09 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: The application of computer-aided design and manufacturing techniques is becoming essential in modern metal-forming technology. Thus process modeling for the determination of deformation mechanics has been a major concern in research . In light of these developments, the finite element method--a technique by which an object is decomposed into pieces and treated as isolated, interacting sections--has steadily assumed increased importance. This volume addresses advances in modern metal-forming technology, computer-aided design and engineering, and the finite element method.
Download or read book Applied Plasticity Second Edition written by Jagabandhu Chakrabarty and published by Springer Science & Business Media. This book was released on 2010-07-07 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book begins with the fundamentals of the mathematical theory of plasticity. The discussion then turns to the theory of plastic stress and its applications to structural analysis. It concludes with a wide range of topics in dynamic plasticity including wave propagation, armor penetration, and structural impact in the plastic range. In view of the rapidly growing interest in computational methods, an appendix presents the fundamentals of a finite-element analysis of metal-forming problems.
Download or read book Experimental and Numerical Studies on Axi Symmetric and Non Axisymmetric Deep Drawn Cups written by B V S Rao and published by Educreation Publishing. This book was released on 2019-01-20 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with Experimental and Numerical Studies on Axi Symmetric and Non-Axisymmetric Deep Drawn Cups. Deep drawing is the process of converting a blank into cup shaped articles. In this process, for performing many calculations the sheet metal thickness is generally taken as constant. In reality, thickness of sheet metal varies throughout the walls of cup. This is undesirable as non-uniform thickness leads to defects like cracks or failures. The variation in thickness can be minimized by selecting optimum parameters of process. The aim of this work is to vary the drawing ratio, blank size and blank material and investigate variation in side wall thickness. This will further enable us to predict and prevent formation of cracks. In addition to this the minimum clearance required to be maintained between the punch and die during ironing operation can be determined using this information. The studies reveal that the bottom corner radius of cup is a source of initial fracture. In deep drawing for the final dimensions of the drawn shape to be successfully achieved, the exact initial blank area or diameter is required. It should be large enough to supply required amount of metal to complete the cup. In this work the Optimum values of blank area is obtained both analytically and numerically for nonstandard axisymmetric cups as well as non-axisymmetric cups which will help in preventing defects in deep drawn cups.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1984 with total page 1104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Modelling of Material Deformation Processes written by Peter Hartley and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: The principal aim of this text is to encourage the development and application of numerical modelling techniques as an aid to achieving greater efficiency and optimization of metal-forming processes. The contents of this book have therefore been carefully planned to provide both an introduction to the fundamental theory of material deformation simulation, and also a comprehensive survey of the "state-of-the-art" of deformation modelling techniques and their application to specific and industrially relevant processes. To this end, leading international figures in the field of material deformation research have been invited to contribute chapters on subjects on which they are acknowledged experts. The information in this book has been arranged in four parts: Part I deals with plasticity theory, Part II with various numerical modelling techniques, Part III with specific process applications and material phenomena and Part IV with integrated computer systems. The objective of Part I is to establish the underlying theory of material deformation on which the following chapters can build. It begins with a chapter which reviews the basic theories of classical plasticity and describes their analytical representations. The second chapter moves on to look at the theory of deforming materials and shows how these expressions may be used in numerical techniques. The last two chapters of Part I provide a review of isotropic plasticity and anisotropic plasticity.
Download or read book Applied Plasticity written by Jagabandhu Chakrabarty and published by Springer Science & Business Media. This book was released on 2000-02-23 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanical engineering, an engineering discipline forged and shaped by the needs of the industrial revolution, is once again asked to do its substantial share in the call for industrial renewal. The general call is urgent as we face profound issues of productivity and competitiveness that require engineering solutions, among others . The Mechanical Engineering Series features graduate texts and research monographs intended to address the need for information in contemporary areas of mechanical engineering. The series is conceived as a comprehensive one that covers a broad range of c- centrations important to mechanical engineering graduate education and research . We are fortunate to have a distinguished roster of consulting editors on the ad- sory board, each an expert in one of the areas of concentration . The names of the consulting editors are listed on the facing page of this volume . The areas of conc- tration are applied mechanics, biomechanics, computational mechanics, dynamic systems and control, energetics , mechanics of materials, processing, production systems, thermal science, and tribology .
Download or read book PROCEEDINGS written by MACHINE TOOL DESIGN AND RESEARCH CONFERENCE (25 : 1985 : BIRMINGHAM) AUTOR and published by . This book was released on 1985 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1972 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structural Dynamic Systems Com written by Cornelius T. Leondes and published by CRC Press. This book was released on 1999-01-27 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: The availability of powerful computers along with highly effective computational techniques have allowed computer-aided design and engineering of structural dynamics systems to achieve a high level of capability and importance. This volume clearly reveals the great significance of these techniques and the essential role they will play in the future as further development occurs. This will be a significant and unique reference for students, research workers, practitioners, computer scientists and others for years to come.
Download or read book Computer Modeling of Sheet Metal Forming Process written by Neng-Ming Wang and published by . This book was released on 1985 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contact Problems in Elasticity written by N. Kikuchi and published by SIAM. This book was released on 1988-01-01 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contact of one deformable body with another lies at the heart of almost every mechanical structure. Here, in a comprehensive treatment, two of the field's leading researchers present a systematic approach to contact problems. Using variational formulations, Kikuchi and Oden derive a multitude of new results, both for classical problems and for nonlinear problems involving large deflections and buckling of thin plates with unilateral supports, dry friction with nonclassical laws, large elastic and elastoplastic deformations with frictional contact, dynamic contacts with dynamic frictional effects, and rolling contacts. This method exposes properties of solutions obscured by classical methods, and it provides a basis for the development of powerful numerical schemes. Among the novel results presented here are algorithms for contact problems with nonlinear and nonlocal friction, and very effective algorithms for solving problems involving the large elastic deformation of hyperelastic bodies with general contact conditions. Includes detailed discussion of numerical methods for nonlinear materials with unilateral contact and friction, with examples of metalforming simulations. Also presents algorithms for the finite deformation rolling contact problem, along with a discussion of numerical examples.
Download or read book Journal of Applied Mechanics written by and published by . This book was released on 1991 with total page 1158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CAD CAM Robotics and Factories of the Future 90 written by Suren N. Dwivedi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt: According to the Concurrent Engineering Research Center (CERC) at West Virginia University, "the concurrent engineering (CE) is a rapid simultaneous approach where research and development, design, manufacturing and support are carried out in parallel". The mission of concurrent engineering is to reduce time to market, improve total quality and lower cost for products or systems developed and supported by large organizations. The purpose of the concurrent design methodology is to let the designer know the consequences of his design decisions in the manufacturing and assembly stages as well as in subsequent operations. Design for manufacture and assembly, design for reliability and testability, CAD/CAM/CAE, knowledge based systems, cost analysis and advanced material technology are the major constituents of concurrent engineering. The need for concurrent engineering can be justified from the fact that in every production cycle, the design phase approximately takes 5 to 10% of the total cycle, but overall it influences 80% of the production cycle. This volume contains articles from a wide spectrum dealing with concepts of concurrent engineering. The importance of the knowledge-based systems in the CE environment is significant as they provide the common platform to achieve the same level of expertise to the designers and manufacturers throughout the organization for the specific task. Their role in "do it right the first time" is very important in providing aid to the designers and manufacturers to optimize the design and manufacturing setups for a cost effectiveness and reduced production time.
Download or read book operational research and its appications written by and published by Allied Publishers. This book was released on with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanics of Materials in Modern Manufacturing Methods and Processing Techniques written by Vadim Silberschmidt and published by Elsevier. This book was released on 2020-04-03 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanics of Materials in Modern Manufacturing Methods and Processing Techniques provides a detailed overview of the latest developments in the mechanics of modern metal forming manufacturing. Focused on mechanics as opposed to process, it looks at the mechanical behavior of materials exposed to loading and environmental conditions related to modern manufacturing processes, covering deformation as well as damage and fracture processes. The book progresses from forming to machining and surface-treatment processes, and concludes with a series of chapters looking at recent and emerging technologies. Other topics covered include simulations in autofrettage processes, modeling strategies related to cutting simulations, residual stress caused by high thermomechanical gradients and pultrusion, as well as the mechanics of the curing process, forging, and cold spraying, among others. Some non-metallic materials, such as ceramics and composites, are covered as well. - Synthesizes the latest research in the mechanics of modern metal forming processes - Suggests theoretical models and numerical codes to predict mechanical responses - Covers mechanics of shot peening, pultrusion, hydroforming, magnetic pulse forming - Considers applicability of different materials and processes for optimum performance
Download or read book Preform Design and Friction Evaluation in Metal Forming by the Finite Element Method written by Sang-Moo Hwang and published by . This book was released on 1985 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
