Elastic Wave Scattering by General Shaped Defects: the Distorted Wave Born Approximation

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1980-07-01
Authors
Domany, Eytan
Newman, Kathie
Teitel, S.
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Abstract

An approximate theory for scattering of elastic wave by general shaped defects has been developed. A defect of arbitrary shape can be represented by a sphere S and a remainder volume R. Using the exact solution for a sphere and treating R as a perturbation, the solution corresponding to the Distorted Wave Born Approximation is obtained. This solution contains non-trivial frequency dependence and phase information. Preliminary comparisons with experiments will be presented.

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