Application of the Hybrid Constitutive Model for Cyclic Plasticity to Sinusoidal Loading

[+] Author and Article Information
H. Ishikawa, K. Sasaki

Department of Mechanical Engineering II, Hokkaido University, Sapporo, 060 Japan

J. Eng. Mater. Technol 114(2), 172-179 (Apr 01, 1992) (8 pages) doi:10.1115/1.2904158 History: Received May 31, 1990; Revised July 27, 1991; Online April 29, 2008


In order to study the applicability of the proposed hybrid constitutive model for cyclic plasticity to nonproportional loading, type 304 stainless-steel specimens subjected to sinusoidal loading that could change the degree of nonproportionality of the strain path were examined in detail. The subsequent yield surface during the loading was discussed in advance because the plastic deformation induced anisotropy coefficient tensor in the yield function had to be determined from the yield surface obtained by the experiment. From the experimental results, the subsequent yield surfaces during the loading could be assumed to be of the quadratic form of stress. The simulations based on the model gave a good description of the sinusoidal loading, irrespective of the degree of nonproportionality of the strain path.

Copyright © 1992 by The American Society of Mechanical Engineers
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