SYMPOSIA PAPER Published: 01 January 1992

Elastic-Plastic Crack-Tip Fields Under History-Dependent Loading


Elastic-plastic behavior of a cracked structure subjected to cyclic loading is evaluated through a series of finite element analyses of a test specimen geometry. A specimen of an extremely ductile material (Type 304 stainless steel) is loaded to just below the Ji value at crack initiation, then unloaded and reloaded using R-ratios of 0.0, -0.5, and - 1.0 including the effects of crack face contact. The crack-tip asymptotic fields, tensile and compressive plastic zones, and crack-tip parameters such as crack-tip-opening displacement and the J- and T*-integrals are evaluated and discussed in the context of cyclic loading for a stationary crack.

Author Information

Brust, FW
Battelle Memorial Institute, Columbus, OH
Ahmad, J
Ad Tech Systems Research, Dayton, OH
Naboulsi, S
The Ohio State University, Columbus, OH
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Developed by Committee: E08
Pages: 206–224
DOI: 10.1520/STP23705S
ISBN-EB: 978-0-8031-5193-2
ISBN-13: 978-0-8031-1440-1