On finite deformation plasticity with directional softening. I, One-component model

A physically based continuum model of finite deformation plasticity with anisotropic hardening is developed and used to evaluate the differences of stress responses in tension, compression and torsion (directional softening) for various materials at large deformations. The coupling effects of back s...

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Bibliographic Details
Published inActa mechanica Vol. 83; no. 1-2; pp. 103 - 117
Main Authors SHI, M. F, GERDEEN, J. C, AIFANTIS, E. C
Format Journal Article
LanguageEnglish
Published Wien Springer 1990
New York, NY
Subjects
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Inelasticity (thermoplasticity, viscoplasticity...)
Physics
Solid mechanics
Structural and continuum mechanics
Response
Scale invariance
High strain
Anisotropy
Plasticity
Finite strain
Strain hardening
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Summary:A physically based continuum model of finite deformation plasticity with anisotropic hardening is developed and used to evaluate the differences of stress responses in tension, compression and torsion (directional softening) for various materials at large deformations. The coupling effects of back stress and plastic spin are incorporated into the model according to the scale invariance method recently suggested by Aifantis. Moreover, the effects of nonlinear dislocation hardening and recovery softening are included. It is shown that the theoretically obtained stress responses in tension, compression and torsion are in good agreement with available experimental data for Cu, brass and Ag. Graphs. 18 ref.--AA
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:0001-5970
1619-6937