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RESEARCH PAPERS

Fatigue of Metals as Stochastic Phenomena

[+] Author and Article Information
C. Ihara

Kyoto University, Kyoto, Japan

A. Tsurui

Hiroshima University, Hiroshima, Japan

J. Eng. Mater. Technol 99(1), 26-28 (Jan 01, 1977) (3 pages) doi:10.1115/1.3443399 History: Received September 22, 1975; Revised February 06, 1976; Online August 17, 2010

Abstract

A stochastic model for the fatigue of metals under repeated stress or strain is proposed. Fatigue lives up to crack initiation are investigated with the aid of a recent theory on a cumulative process and the mean values are plotted versus stress amplitudes. Of interest is the fact that this curve behaves as if the endurance limit existed when the parameters are adequately taken. Except the neighborhood of the endurance limit, the coefficients of variation are also calculated approximately.

Copyright © 1977 by ASME
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