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RESEARCH PAPERS

Continuum Foundations of Endochronic Plasticity

[+] Author and Article Information
K. C. Valanis

College of Engineering, University of Cincinnati, Cincinnati, Ohio 45221

J. Eng. Mater. Technol 106(4), 367-375 (Oct 01, 1984) (9 pages) doi:10.1115/1.3225732 History: Received March 12, 1984; Revised July 23, 1984; Online September 15, 2009

Abstract

In this paper a number of issues are addressed. The proper measure of intrinsic time is shown to be the norm of the increment of the plastic strain tensor, if the memory path is a line in the cojoint stress-strain space and elasticity at reversal points is stipulated. The convexity of the kernel function suffices to show that a periodic plastic strain history will give rise to a periodic stress history—as is observed. Standard tests are then established for the unequivocal experimental determination of the kernel and hardening function, valid for use in general three-dimensional histories.

Copyright © 1984 by ASME
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