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RESEARCH PAPERS

Microplastic Strain Hysteresis Energy as a Criterion for Fatigue Fracture

[+] Author and Article Information
C. E. Feltner, Jo Dean Morrow

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

J. Basic Eng 83(1), 15-22 (Mar 01, 1961) (8 pages) doi:10.1115/1.3658884 History: Received October 14, 1959; Online November 04, 2011

Abstract

In this paper an energy criterion for fatigue failure is postulated. Microplastic strain hysteresis energy is considered to be an index for fatigue damage. On this basis, a relation is developed between stress amplitude and the number of cycles to failure which utilizes only material properties obtained from the static true stress-strain tension test. The analysis is found to compare well with an experimentally determined S-N curve for SAE 4340 steel.

Copyright © 1961 by ASME
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