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RESEARCH PAPERS

A New Parameter for the Hysteretic Stress-Strain Behavior of Metals

[+] Author and Article Information
H. R. Jhansale

Department of Theoretical and Applied Mechanics, University of Illinois, Urbana, Ill.

J. Eng. Mater. Technol 97(1), 33-38 (Jan 01, 1975) (6 pages) doi:10.1115/1.3443257 History: Received January 07, 1974; Revised April 05, 1974; Online August 17, 2010

Abstract

Analysis of transient and steady state stress-strain hysteresis behavior of several structural metals reveals a new parameter, defined as the “Yield Range Increment”, which uniquely denotes the various transient phenomena including cyclic hardening, softening, relaxation, and creep and the steady state cyclic stress-strain behavior. All transient and steady state hysteresis branches of a given material appear to be identical in shape, after their Yield Range Increments, which are suitable portions of the initial “elastic” parts, are deleted. A mathematical model incorporating the Yield Range Increment is proposed. With the determination of the functional relationship between the newly proposed parameter and the several input variables of cyclic loading, this approach should lead to a unified approach for describing the cyclic stress-strain response of materials.

Copyright © 1975 by ASME
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