The distorted wave Born approximation: Application to elastodynamics
作者:
K. E. Newman,
S. Teitel,
E. Domany,
期刊:
Journal of Applied Physics
(AIP Available online 1981)
卷期:
Volume 52,
issue 7
页码: 4363-4370
ISSN:0021-8979
年代: 1981
DOI:10.1063/1.329360
出版商: AIP
数据来源: AIP
摘要:
An approximate theory for scattering of elastic waves by general shaped defects has been developed. A defect of arbitrary shape can be represented by a sphereSand a remainder volumeR¯. Using the exact solution for a sphere and treatingR¯as a perturbation, the solution corresponding to the distorted wave Born approximation is obtained. This solution contains nontrivial frequency dependence and phase information. Preliminary comparisons with experiments are presented.
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