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RESEARCH PAPERS

A Constitutive Model of Cyclic Plasticity for Nonlinear Hardening Materials

[+] Author and Article Information
N. Ohno

Department of Energy Engineering, Toyohashi University of Technology, Tempaku-cho, Toyohashi, 440 Japan

Y. Kachi

Sumitomo Electric Industries, Ltd., Shimaya, Konohana-ku, Osaka, 554 Japan

J. Appl. Mech 53(2), 395-403 (Jun 01, 1986) (9 pages) doi:10.1115/1.3171771 History: Received August 08, 1984; Revised September 05, 1985; Online July 21, 2009

Abstract

A constitutive model is proposed for cyclic plasticity of nonlinear hardening materials. The concept of a cyclic nonhardening range, which enables us to describe the dependence of cyclic hardening on the amplitude of cyclic straining or stressing, is employed together with the idea of a two-surface plasticity model. Results of the proposed model are compared with experiments of 304 and 316 stainless steels in several cases of cyclic loading in which mean strain is zero or nonzero and strain limits are fixed or variable. Thus, it is shown that the model successfully describes both the cyclic hardening phenomenon and the transient elastoplastic behavior after initial and reverse yields of these materials. The capability of the model to provide nonlinear cyclic stress-strain curves is also discussed.

Copyright © 1986 by ASME
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