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**Harvard**

Westlund, J. och Boström, A. (2012) *A hybrid T matrix/boundary element method for elastic wave scattering from a defect near a non-planar surface*.

** BibTeX **

@article{

Westlund2012,

author={Westlund, Jonathan and Boström, Anders},

title={A hybrid T matrix/boundary element method for elastic wave scattering from a defect near a non-planar surface},

journal={Journal of nondestructive evaluation},

issn={0195-9298},

volume={31},

pages={148-156},

abstract={The in-plane P-SV scattering of elastic waves bya defect and a close non-planar surface is considered. A hybrid T matrix/boundary element approach is used, where a boundary integral equation is used for the non-planar surface and the Green’s tensor in this integral equation is chosen as the one for the defect and thus incorporates the transition
(T ) matrix of the defect. The integral equation is iscretized by the boundary element method in a standard way.
Also models of ultrasonic probes in transmission and reception are included. In the numerical examples the defect is for simplicity chosen as a circular cavity. This cavity is located close to a non-planar surface, which is planar except for a smooth transition between two planar parts. It is illustrated that the scattering by the cavity and the non-planar surface becomes quite complicated, and that shielding and masking may appear.},

year={2012},

keywords={Boundary integral method, boundary element method, scattering, ultrasonics T matrix},

}

** RefWorks **

RT Journal Article

SR Electronic

ID 168000

A1 Westlund, Jonathan

A1 Boström, Anders

T1 A hybrid T matrix/boundary element method for elastic wave scattering from a defect near a non-planar surface

YR 2012

JF Journal of nondestructive evaluation

SN 0195-9298

VO 31

SP 148

OP 156

AB The in-plane P-SV scattering of elastic waves bya defect and a close non-planar surface is considered. A hybrid T matrix/boundary element approach is used, where a boundary integral equation is used for the non-planar surface and the Green’s tensor in this integral equation is chosen as the one for the defect and thus incorporates the transition
(T ) matrix of the defect. The integral equation is iscretized by the boundary element method in a standard way.
Also models of ultrasonic probes in transmission and reception are included. In the numerical examples the defect is for simplicity chosen as a circular cavity. This cavity is located close to a non-planar surface, which is planar except for a smooth transition between two planar parts. It is illustrated that the scattering by the cavity and the non-planar surface becomes quite complicated, and that shielding and masking may appear.

LA eng

DO 10.1007/s10921-012-0130-3

LK http://dx.doi.org/10.1007/s10921-012-0130-3

LK http://publications.lib.chalmers.se/records/fulltext/168000/local_168000.pdf

OL 30