Internal time, general internal variable, and multi-yield-surface theories of plasticity and creep: A unification of concepts

O. Watanabe, S. N. Atluri

Research output: Contribution to journalArticlepeer-review

94 Scopus citations

Abstract

In this paper, certain unifying concepts underlying the internal-time (endochronic), general internal variable, and multi-yield surface theories of plasticity and creep, are presented. Rate-forms of evolution equations for stress, back stress, and other variables, based on an internal-time theory, are presented for plasticity and creep. It is shown that by an appropriate choice of kernels in the present internal time theory, the so-called "nonlinear-kinematic-hardening" rules of Chaboche, Mroz., th the multi-surface-yield theories of Mroz, Krieg, Defalias et al., and the linear kinematic hardening theories of Prager, etc., may be deduced as special cases.

Original languageEnglish
Pages (from-to)37-57
Number of pages21
JournalInternational journal of plasticity
Volume2
Issue number1
DOIs
StatePublished - 1986

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