Scattering of a Love Wave by the Edge of a Thin Surface Layer

[+] Author and Article Information
D. A. Simons

Division of Engineering, Brown University, Providence, R. I.

J. Appl. Mech 42(4), 842-846 (Dec 01, 1975) (5 pages) doi:10.1115/1.3423717 History: Received December 01, 1974; Revised April 01, 1975; Online July 12, 2010


The antiplane strain problem of the scattering of an incident Love wave by the edge of a thin surface layer is solved. The effect of the layer is represented by a boundary condition applied at the surface of the substrate. In addition, the condition of vanishing traction on the edge of the layer is explicitly enforced. At large distances from the layer’s edge the scattered field is found to consist of a reflected Love wave and a radiated wave. The power flux identity for the problem is derived, and values of the power reflection coefficient are computed. The power flux identity is verified numerically, and the discrepancy which would arise from a failure to satisfy the condition of vanishing traction on the layer’s edge is evaluated.

Copyright © 1975 by ASME
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