Scattering of Elastic Waves by Complex Defects; Multiple Scattering Formalism

Date
1981
Authors
Domany, Eytan
Mizrachi, Leah
Journal Title
Journal ISSN
Volume Title
Publisher
Altmetrics
Authors
Research Projects
Organizational Units
Journal Issue
Series
Abstract

Scattering of elastic waves by complex defects is investigated. In previous work the Distorted Wave Born Approximation was developed, in which a general shaped defect is represented as a sphere S and a remainder volume R, the latter being treated in first order perturbation theory. The DWBA was used to study scattering by a sequence of defects representing increasingly larger deviations from spherical; comparisons with experiment and other theories were made. This approach breaks down when scattering by R is of similar magnitude as by S. Such is the case for complex defects such as two spheres, or a sphere and a crack emanating from it. To treat such situations, a multiple scattering formalism was developed.

Description
Keywords
Citation
DOI
Source