Numerical Analysis of Scattering by Interface Flaws

dc.contributor.author Xu, Yonglin
dc.contributor.author Achenbach, Jan
dc.date 2018-02-14T03:21:04.000
dc.date.accessioned 2020-06-30T06:35:52Z
dc.date.available 2020-06-30T06:35:52Z
dc.date.copyright Mon Jan 01 00:00:00 UTC 1990
dc.date.issued 1990
dc.description.abstract <p>Scattering by inhomogeneities in homogeneous media can be analyzed in an elegant manner by reducing the problem statement to the solution of a system of singular integral equations over the surface of the scatterer [1]. This system can be solved in a relatively straight forward manner by the use of the boundary element method [2]. An inhomogeneity in an interface between two solids of different mechanical properties presents some additional complications to the numerical analyst. These complications are discussed in this paper. In deriving the system of singular integral equations, it was decided to use the Green’s functions for the unbounded regions of the two materials, rather than the single Green’s function for the space of the joined half spaces. This approach introduces a considerable simplification in the integrands, but at the expense of the addition of a set of boundary integral equations over the interface between the two solids, outside of the inhomogeneity. In the boundary element approach the domain of these equations has to be truncated. Specific results are presented for backscattering by a spherical cavity in the interface of solids of different elastic moduli and mass densities.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/qnde/1990/allcontent/10/
dc.identifier.articleid 1484
dc.identifier.contextkey 5776999
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath qnde/1990/allcontent/10
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/59475
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/qnde/1990/allcontent/10/1990_XuY_NumericalAnalysisScattering.pdf|||Fri Jan 14 18:04:42 UTC 2022
dc.source.uri 10.1007/978-1-4684-5772-8_10
dc.subject.disciplines Acoustics, Dynamics, and Controls
dc.subject.disciplines Structures and Materials
dc.title Numerical Analysis of Scattering by Interface Flaws
dc.type event
dc.type.genre article
dspace.entity.type Publication
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