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RESEARCH PAPERS

Small Scale Contact Conditions for the Linear-Elastic Interface Crack

[+] Author and Article Information
Peter M. Anderson

Department of Materials Science and Engineering, The Ohio State University, Columbus, Ohio 43210-1179

J. Appl. Mech 55(4), 814-817 (Dec 01, 1988) (4 pages) doi:10.1115/1.3173726 History: Received August 17, 1987; Revised May 26, 1988; Online July 21, 2009

Abstract

Conditions are discussed for which the contact zone at the tip of a two-dimensional interface crack between anisotropic elastic materials is small. For such “small scale contact” conditions combined with small scale yielding conditions, a stress concentration vector uniquely characterizes the near tip field, and may be used as a crack growth parameter. Representative calculations for an interface crack on a representative Cu grain boundary show small contact conditions to prevail, except possibly under large shearing loads.

Copyright © 1988 by ASME
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