Scattering of Love Waves by a Surface-Breaking Crack

[+] Author and Article Information
Y. C. Angel

Department of Mechanical Engineering and Materials Science, Rice University, Houston, Texas 77251

J. Appl. Mech 53(3), 587-592 (Sep 01, 1986) (6 pages) doi:10.1115/1.3171815 History: Received August 27, 1985; Revised December 23, 1985; Online July 21, 2009


The interaction of Love waves with a surface-breaking crack normal to the free surface is investigated. By the use of Fourier transform techniques, the mixed-boundary value problem is reduced to a singular integral equation which is solved numerically. It is shown that the reflected and transmitted displacement fields at some distance from the crack are the superposition of a finite number of Love-wave modes. The reflection coefficients for the first three modes and the transmission coefficient are plotted versus the frequency. Several sharp resonances are observed. Each resonance corresponds to the vanishing of the amplitude of a particular Love-wave mode.

Copyright © 1986 by ASME
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