Effective Elastic Stiffnesses of an Anisotropic Medium Permeated by Tilted Cracks

[+] Author and Article Information
C. Barret, S. Baste

Laboratoire de Mecanique Physique, C. N. R. S. UMR 5469, Universite Bordeaux 1, 351, Cours de la Liberation, 33405 Talence Cedex, France

J. Appl. Mech 66(3), 680-686 (Sep 01, 1999) (7 pages) doi:10.1115/1.2791562 History: Received May 07, 1998; Revised January 10, 1999; Online October 25, 2007


This paper is concerned with the relationship between the effective stiffness tensor and the intensity of damage in individual modes for an anisotropic material with tilted cracks. The predictions are compared favorably with the experimentally measured load-induced changes of the 13 stiffnesses of a two-dimensional C/C-SiC ceramic matrix composite subjected to an off-axis solicitation. By taking into account the thickness of the cracks, it is possible to understand the change of the elastic anisotropy of the material and of its inelastic strain.

Copyright © 1999 by The American Society of Mechanical Engineers
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