Analysis of Closure in Fatigue Crack Growth

[+] Author and Article Information
B. Budiansky, J. W. Hutchinson

Division of Applied Sciences, Harvard University, Cambridge, Mass.

J. Appl. Mech 45(2), 267-276 (Jun 01, 1978) (10 pages) doi:10.1115/1.3424286 History: Received June 01, 1977; Revised October 01, 1977; Online July 12, 2010


A theoretical study is made of the implications of a Dugdale-Barenblatt model for fatigue crack growth under steady cyclic loading. Residual plastic stretches and the effects of crack closure on crack opening and closing loads are calculated by complex function methods for a range of loading ratios. An assessment is made of the influence of cyclic strain hardening and softening.

Copyright © 1978 by ASME
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