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SH pulse in an elastic wedge

EARTHQUAKE MECHANISM LABORATORY NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, 390 MAIN STREET SAN FRANCISCO, CALIFORNIA 94105

Abstract

This paper gives an analysis of the response of an elastic wedge of arbitrary angle to an impulsive SH source applied on the wedge surface along a line parallel to the edge of the wedge. A two-dimensional time-dependent Green's function for SH waves is constructed from an integral-transform approach. The result is given in a closed form for the incident and the reflected pulses and in an integral form for the diffracted pulse from the edge. For the special case that the wedge angle is an integral fraction of , the result is interpretable in terms of a finite set of image sources with no diffraction effect. Numerical examples are given for illustration.

Footnotes

^* Now at National Center for Earthquake Research, U. S. Geological Survey, 345 Middlefield Road, Menlo Park, California 94025.

This article has been cited by other articles:

				F. J. SANCHEZ-SESMA Diffraction of elastic SH waves by wedges Bulletin of the Seismological Society of America, October 1, 1985; 75(5): 1435 - 1446. [Abstract] [PDF]