Plasticity of Metals at Finite Strain PDF Download
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Author:
Publisher:
ISBN:
Category : Dislocations in metals
Languages : en
Pages : 784
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Book Description
Author:
Publisher:
ISBN:
Category : Dislocations in metals
Languages : en
Pages : 784
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Book Description
Author: Koichi Hashiguchi
Publisher: John Wiley & Sons
ISBN: 1118437721
Category : Science
Languages : en
Pages : 371
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Book Description
Comprehensive introduction to finite elastoplasticity, addressing various analytical and numerical analyses & including state-of-the-art theories Introduction to Finite Elastoplasticity presents introductory explanations that can be readily understood by readers with only a basic knowledge of elastoplasticity, showing physical backgrounds of concepts in detail and derivation processes of almost all equations. The authors address various analytical and numerical finite strain analyses, including new theories developed in recent years, and explain fundamentals including the push-forward and pull-back operations and the Lie derivatives of tensors. As a foundation to finite strain theory, the authors begin by addressing the advanced mathematical and physical properties of continuum mechanics. They progress to explain a finite elastoplastic constitutive model, discuss numerical issues on stress computation, implement the numerical algorithms for stress computation into large-deformation finite element analysis and illustrate several numerical examples of boundary-value problems. Programs for the stress computation of finite elastoplastic models explained in this book are included in an appendix, and the code can be downloaded from an accompanying website.
Author: E. H. Lee
Publisher:
ISBN:
Category :
Languages : en
Pages : 758
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Book Description
Large strain deformation of materials at intermediate (warm working) temperatures has its useful aspects: lower resistance to plastic flow reduces the amount of work required to deform the material, increasing ductility at this temperature range allows for a large amount of deformation before fracture, the oxidation rate is virtually zero, and fine microstructures are developed leading to very desirable properties. However, in warm working, problems arise as a result of the build up of residual stresses due to metal forming which can eventually cause failure. Such fracture modes as 'central burst', alligatoring, edge cracking, and unzipping are described, and some methods of preventing their occurrence is discussed in the following paper.
Author: G. W. Rowe
Publisher: Cambridge University Press
ISBN: 0521383625
Category : Crafts & Hobbies
Languages : en
Pages : 325
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Book Description
Describes a computer-based technique for aiding metal-forming processes, and so enable tool and product designers to reduce development lead times for the introduction of new products and help improve the quality and reliability of products.
Author: Franz Roters
Publisher: John Wiley & Sons
ISBN: 3527642099
Category : Technology & Engineering
Languages : en
Pages : 188
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Book Description
Written by the leading experts in computational materials science, this handy reference concisely reviews the most important aspects of plasticity modeling: constitutive laws, phase transformations, texture methods, continuum approaches and damage mechanisms. As a result, it provides the knowledge needed to avoid failures in critical systems udner mechanical load. With its various application examples to micro- and macrostructure mechanics, this is an invaluable resource for mechanical engineers as well as for researchers wanting to improve on this method and extend its outreach.
Author: Emilio Martínez Pañeda
Publisher: Springer
ISBN: 3319633848
Category : Science
Languages : en
Pages : 166
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Book Description
This book provides a comprehensive introduction to numerical modeling of size effects in metal plasticity. The main classes of strain gradient plasticity formulations are described and efficiently implemented in the context of the finite element method. A robust numerical framework is presented and employed to investigate the role of strain gradients on structural integrity assessment. The results obtained reveal the need of incorporating the influence on geometrically necessary dislocations in the modeling of various damage mechanisms. Large gradients of plastic strain increase dislocation density, promoting strain hardening and elevating crack tip stresses. This stress elevation is quantified under both infinitesimal and finite deformation theories, rationalizing the experimental observation of cleavage fracture in the presence of significant plastic flow. Gradient-enhanced modeling of crack growth resistance, hydrogen diffusion and environmentally assisted cracking highlighted the relevance of an appropriate characterization of the mechanical response at the small scales involved in crack tip deformation. Particularly promising predictions are attained in the field of hydrogen embrittlement. The research has been conducted at the Universities of Cambridge, Oviedo, Luxembourg, and the Technical University of Denmark, in a collaborative effort to understand, model and optimize the mechanical response of engineering materials.
Author: Akhtar S. Khan
Publisher: John Wiley & Sons
ISBN: 9780471310433
Category : Science
Languages : en
Pages : 434
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Book Description
The only modern, up-to-date introduction to plasticity Despite phenomenal progress in plasticity research over the past fifty years, introductory books on plasticity have changed very little. To meet the need for an up-to-date introduction to the field, Akhtar S. Khan and Sujian Huang have written Continuum Theory of Plasticity--a truly modern text which offers a continuum mechanics approach as well as a lucid presentation of the essential classical contributions. The early chapters give the reader a review of elementary concepts of plasticity, the necessary background material on continuum mechanics, and a discussion of the classical theory of plasticity. Recent developments in the field are then explored in sections on the Mroz Multisurface model, the Dafalias and Popov Two Surface model, the non-linear kinematic hardening model, the endochronic theory of plasticity, and numerous topics in finite deformation plasticity theory and strain space formulation for plastic deformation. Final chapters introduce the fundamentals of the micromechanics of plastic deformation and the analytical coupling between deformation of individual crystals and macroscopic material response of the polycrystal aggregate. For graduate students and researchers in engineering mechanics, mechanical, civil, and aerospace engineering, Continuum Theory of Plasticity offers a modern, comprehensive introduction to the entire subject of plasticity.
Author:
Publisher:
ISBN:
Category : Metals
Languages : en
Pages : 514
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Book Description
Author: S. Nemat-Nasser
Publisher: Cambridge University Press
ISBN: 9780521839792
Category : Mathematics
Languages : en
Pages : 858
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Book Description
Publisher Description
Author: Hamid Jahed
Publisher: Elsevier
ISBN: 0128192941
Category : Technology & Engineering
Languages : en
Pages : 470
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Book Description
Cyclic Plasticity of Metals: Modeling Fundamentals and Applications provides an exhaustive overview of the fundamentals and applications of various cyclic plasticity models including forming and spring back, notch analysis, fatigue life prediction, and more. Covering metals with an array of different structures, such as hexagonal close packed (HCP), face centered cubic (FCC), and body centered cubic (BCC), the book starts with an introduction to experimental macroscopic and microscopic observations of cyclic plasticity and then segues into a discussion of the fundamentals of the different cyclic plasticity models, covering topics such as kinematics, stress and strain tensors, elasticity, plastic flow rule, and an array of other concepts. A review of the available models follows, and the book concludes with chapters covering finite element implementation and industrial applications of the various models. Reviews constitutive cyclic plasticity models for various metals and alloys with different cell structures (cubic, hexagonal, and more), allowing for more accurate evaluation of a component’s performance under loading Provides real-world industrial context by demonstrating applications of cyclic plasticity models in the analysis of engineering components Overview of latest models allows researchers to extend available models or develop new ones for analysis of an array of metals under more complex loading conditions
