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RESEARCH PAPERS

Analysis of Branched Interface Cracks Between Dissimilar Anisotropic Media

[+] Author and Article Information
G. R. Miller

Department of Civil Engineering, University of Washington, Seattle, WA 98195

W. L. Stock

McDonnell-Douglas, Inc., San Diego, CA

J. Appl. Mech 56(4), 844-849 (Dec 01, 1989) (6 pages) doi:10.1115/1.3176180 History: Received October 24, 1988; Revised February 22, 1989; Online July 21, 2009

Abstract

A solution is presented for the problem of a crack branching off the interface between two dissimilar anisotropic materials. A Green’s function solution is developed using the complex potentials of Lekhnitskii (1981) allowing the branched crack problem to be expressed in terms of coupled singular integral equations. Numerical results for the stress intensity factors at the branch crack tip are presented for some special cases, including the no-interface case which is compared to the isotropic no-interface results of Lo (1978).

Copyright © 1989 by ASME
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