Three-Dimensional Wave Propagation in a Cracked Elastic Solid

[+] Author and Article Information
S. Itou

Department of Mechanical Engineering, Hachinohe Institute of Technology, Hachinohe 031, Japan

J. Appl. Mech 45(4), 807-811 (Dec 01, 1978) (5 pages) doi:10.1115/1.3424423 History: Received June 01, 1977; Revised June 01, 1978; Online July 12, 2010


The three-dimensional dynamic problem is presented for an infinite elastic medium weakened by a plane crack of infinite length and finite width. On the surfaces of the crack, the self-equilibrated system of a load varies harmonically in time and is distributed arbitrarily on those surfaces. The Fourier transformations are utilized to reduce the problem to a solution of two simultaneous integral equations which can be solved by using the series expansion method. The dynamic stress-intensity factor is computed numerically for some applied loads.

Copyright © 1978 by ASME
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