Study of a Three-Dimensional Crack Terminating at an Interface

[+] Author and Article Information
J. C. Lee, L. M. Keer

Department of Civil Engineering, Northwestern University, Evanston, Ill. 60201

J. Appl. Mech 53(2), 311-316 (Jun 01, 1986) (6 pages) doi:10.1115/1.3171757 History: Received April 23, 1985; Revised August 27, 1985; Online July 21, 2009


In this study the stress intensity factors for a three-dimensional crack perpendicular to and terminating at a bimaterial interface are calculated. It is assumed that the crack is pressurized by a uniform pressure. The method of solution used here is based upon the body-force method and requires the analytical results from the elasticity point-force solution for a bimaterial interface. The solution technique leads to the reduction of the problem to a two-dimensional singular integral equation, which can be solved numerically for the crack opening displacement. Numerical examples of a semi-circular, semi-elliptical crack and growth of circular crack are given.

Copyright © 1986 by ASME
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