Crack Initiation From Homogeneous and Bimaterial Corners

[+] Author and Article Information
J. L. Grenestedt, S. Hallstrom

Department of Aeronautics, Division of Lightweight Structures, Kungl Tekniska Hogskolan (Royal Institute of Technology) S-100 44 Stockholm, Sweden

J. Appl. Mech 64(4), 811-818 (Dec 01, 1997) (8 pages) doi:10.1115/1.2788986 History: Received November 06, 1996; Revised March 28, 1997; Online October 25, 2007


Fracture initiated at a corner between two different isotropic materials is considered. A “small” crack, well within the region dominated by the asymptotic stress fields of the noncracked corner, is modeled and the stress intensities associated with the tip of the small crack are determined. Different criteria for the direction of crack propagation are studied.

Copyright © 1997 by The American Society of Mechanical Engineers
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