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RESEARCH PAPERS

Fatigue Crack Growth Under General-Yielding Cyclic-Loading

[+] Author and Article Information
Zheng Minzhong, H. W. Liu

Syracuse University, Syracuse, N.Y. 13244

J. Eng. Mater. Technol 108(3), 201-205 (Jul 01, 1986) (5 pages) doi:10.1115/1.3225867 History: Received May 20, 1985; Online September 15, 2009

Abstract

In low cycle fatigue, cracks are initiated and propagated under general-yielding cyclic-loading. For general-yielding cyclic-loading, Dowling and Begley have shown that fatigue crack growth rate correlates well with the measured ΔJ. The correlation of da/dN with ΔJ has also been studied by a number of other investigators. However, none of these studies has correlated da/dN with ΔJ calculated specifically for the test specimens. Solomon measured fatigue crack growth in specimens in general-yielding cyclic-loading. The crack tip fields for Solomon’s specimens are calculated, using the finite element method, and the J-values of Solomon’s tests are evaluated. The measured crack growth rate in Solomon’s specimens correlates very well with the calculated ΔJ.

Copyright © 1986 by ASME
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