Abstract
A simplified method is presented to treat the complicated problem of scattering of plane harmonic SH-waves by cavities of any shape, either in full or half space. The essence of the method is the discretization of the boundary of the cavity into a series of straight strips. By doing this only plane waves will be encountered in the analysis. An approximate method to include the effects of diffraction due to grazing waves is also incorporated. Results compare reasonably well with existing closed-form solutions. The angle of incidence of the waves is seen to be a dominant parameter in the analysis.
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