Plasticity and Textures

Released on by W. Gambin
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  • Plasticity and Textures Book Detail

  • Author : W. Gambin
  • Release Date : 2013-04-17
  • Publisher : Springer Science & Business Media
  • Genre : Science
  • Pages : 254
  • ISBN 13 : 9401597634
  • File Size : 69,69 MB
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Plasticity and Textures by W. Gambin PDF Summary

Book Description: The classical, phenomenological theory of plastically anisotropic materials has passed a long way: from the work of von Mises presented in 1928, and the HilI formulation given in 1948, to the latest papers on large elastic-plastic deformations of anisotropic metal sheets. A characteristic feature of this approach is a linear flow rule and a quadratic yield criterion. Mathematical simplicity of the theory is a reason of its numerous applications to the analysis of engineering structures during the onset of plastic deformations. However, such an approach is not sufficient for description of the metal forming processes, when a metal element undergoes very large plastic strains. If we take an initially isotropic piece of metal, it becomes plastically anisotropic during the forming process, and the induced anisotropy progressively increases. This fact strongly determines directions of plastic flow, and it leads to an unexpected strain localization in sheet elements. To explain the above, it is necessary to take into account a polycrystalline structure of the metal, plastic slips on slip systems of grains, crystallographic lattice rotations, and at last, a formation of textures and their evolution during the whole deformation process. In short, it is necessary to introduce the plasticity of crystals and polycrystals. The polycrystal analysis shows that, when the advanced plastic strains take place, some privileged crystallographic directions, called a crystallographic texture, occur in the material. The texture formation and evolution are a primary reason for the induced plastic anisotropy in pure metals.

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Plasticity and Textures

Plasticity and Textures

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The classical, phenomenological theory of plastically anisotropic materials has passed a long way: from the work of von Mises presented in 1928, and the HilI fo

Crystal Plasticity Finite Element Methods

Crystal Plasticity Finite Element Methods

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Written by the leading experts in computational materials science, this handy reference concisely reviews the most important aspects of plasticity modeling: con