Constitutive Modeling of Anisothermal Cyclic Plasticity of 304 Stainless Steel

[+] Author and Article Information
N. Ohno

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

Y. Takahashi, K. Kuwabara

Central Research Institute of Electric Power Industry, Iwato-kita, Komae, Tokyo 201, Japan

J. Eng. Mater. Technol 111(1), 106-114 (Jan 01, 1989) (9 pages) doi:10.1115/1.3226424 History: Received February 02, 1988; Online September 15, 2009


Temperature-history dependence in anisothermal cyclic plasticity of 304 stainless steel is studied for the constitutive modeling within the temperature range from room temperature to 600°C. Cyclic plastic behavior under in-phase and out-of-phase changes of temperature and athermal strain is analyzed first by use of an elaborate constitutive model with its material constants determined from isothermal experiments; good agreement is obtained between the predictions and experiments, if we assume that the internal change proper to higher temperature prevails under such thermomechanical cycling. This finding leads us to extend the evolution equation of isotropic hardening so that it can be valid for more complex variations of temperature. The extended model simulates well the recent experiments of Niitsu and Ikegami under multi-step changes of temperature.

Copyright © 1989 by ASME
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