Abstract
A T-matrix formalism developed for plane-wave scattering from a fluid-loaded elastic spherical shell near a rough fluid elastic interface [J. Acoust. Soc. Am. 101, 767–788 (1997)] is generalized to include scattering from targets for which a T-matrix is known and constructed on a spherical wave basis, and from the interface of penetrable sediments for which a T-matrix is known and constructed on a Weyl plane-wave basis. A variety of numerical results are obtained for plane-wave scattering from elastic spheres and elastic spherical shells, as well as a finite elastic cylinder with hemispherical end caps near rigid, soft, fluid, elastic, poroelastic, and layered fluid sediments with planar boundaries that demonstrate some of the effects’ target-boundary scattering on resonant and nonresonant scattering.
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