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RESEARCH PAPERS

Constitutive Relationships for the Time-Dependent Deformation of Metals

[+] Author and Article Information
A. R. S. Ponter, F. A. Leckie

Engineering Department, University of Leicester, Leicester, England

J. Eng. Mater. Technol 98(1), 47-51 (Jan 01, 1976) (5 pages) doi:10.1115/1.3443336 History: Received November 04, 1974; Revised March 05, 1975; Online August 17, 2010

Abstract

The paper discusses the constitutive relations for the inelastic deformation of a polycrystalline metal at high temperature. Commencing from a description of a dislocation structure in terms of strain hardening and thermal softening, the general form of the constitutive relation is developed in terms of a potential function. The existence of a stationary state potential is established and generalizations of isotropic and kinematic hardening are described.

Copyright © 1976 by ASME
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