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RESEARCH PAPERS

Verification of Specimens for Low-Cycle Fatigue and Cyclic Plasticity Testing

[+] Author and Article Information
C. C. Schultz, H. M. Zien

The Babcock and Wilcox Company, Research and Development Division, Alliance, Ohio 44601

J. Pressure Vessel Technol 101(4), 321-327 (Nov 01, 1979) (7 pages) doi:10.1115/1.3454640 History: Received April 10, 1979; Online October 25, 2010

Abstract

The results of inelastic finite element analyses of several uniaxial specimens used for low-cycle fatigue and cyclic plasticity testing are presented. The test specimens studied include both hourglass and uniform gage-type geometries. These results indicate that normally used hourglass specimens may significantly underestimate the strain for a given stress. Uniform gage specimens with commonly used length-to-diameter ratios are shown to provide adequate stress-strain data. Two extensively strain-gaged uniform gage specimens were tested to provide data to confirm the acceptability of the inelastic analysis methods.

Copyright © 1979 by ASME
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