Analysis of Multiple Fatigue Cracks—Part II: Results

[+] Author and Article Information
M. C. Dubourg, M. Godet

Laboratoire de Mécanique des Contacts (CNRS URA 856), Institut National des Sciences Appliquées, de Lyon, 69621 Villeurbanne Cédex, France

B. Villechaise

Laboratoire de Mécanique des Solides (CNRS URA 861), Université de Poitiers, 86022 Poitiers Cédex, France

J. Tribol 114(3), 462-468 (Jul 01, 1992) (7 pages) doi:10.1115/1.2920906 History: Received February 26, 1991; Revised June 01, 1991; Online June 05, 2008


A semianalytical model of multiple fatigue crack analysis in sliding contact is developed. Linear elastic fracture mechanics is applied. Frictional resistance between crack faces is taken into account. Five crack interaction mechanisms have been identified. Load transfer between cracks can cause both significant increases and drops in stress intensity factors both in mode I and II. The interaction depends on the distance between cracks, their relative position with respect to the loading zone, and the interfacial crack coefficient of friction.

Copyright © 1992 by The American Society of Mechanical Engineers
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