Endochronic Description of Cyclic Hardening Behavior for Metallic Materials

[+] Author and Article Information
H. C. Wu, M. C. Yip

Division of Materials Engineering, The University of Iowa, Iowa City, IA 52242

J. Eng. Mater. Technol 103(3), 212-217 (Jul 01, 1981) (6 pages) doi:10.1115/1.3225003 History: Received June 29, 1980; Online September 15, 2009


The cyclic hardening behavior of metallic materials at a prescribed constant plastic strain rate is investigated. The development is within the framework of the endochronic theory of viscoplasticity. It has been shown that a cyclic steady state can be attained theoretically, in agreement with the experimental finding. A general expression for describing the stress-strain relation for all cycles of a fatigue test with fixed total strain amplitude is presented and the peak stress of each cycle at different specified total strain level is also investigated.

Copyright © 1981 by ASME
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