The Interface Crack in a Shear Field

[+] Author and Article Information
Maria Comninou

Department of Applied Mechanics and Engineering Science, The University of Michigan, Ann Arbor, Mich.

J. Appl. Mech 45(2), 287-290 (Jun 01, 1978) (4 pages) doi:10.1115/1.3424289 History: Received August 01, 1977; Revised October 01, 1977; Online July 12, 2010


The interface crack in a tension field was reconsidered in a recent paper, and the unrealistic oscillatory singularities were eliminated by assuming small frictionless contact zones near the crack tips. In the present paper, the interface crack in a shear field is studied. Some unexpected results emerge: one of the contact zones is large, affecting thus the global nature of the solution; the gap closes extremely abruptly at one of its ends, but the normal stresses remain zero at this point; and the shear stress-intensity factors have opposite signs at the crack tips.

Copyright © 1978 by ASME
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