Elastodynamic Scattering Cross-Sections for Three-Dimensional Whisker-Like Inclusions
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Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.
This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.
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Abstract
The problem formulation for scattering of a plane time-harmonic longitudinal wave by a cylindrical inclusion in a homogeneous, isotropic, linearly elastic solid is reduced to the solution of a system of singular integral equations over the inclusion-matrix interface. The inclusion is circular cylindrical with semi-spherical end sections. The singular integral equations are solved by the boundary element method. Once the interface fields have been determined, the scattered far-field is obtained by the use of elastodynamic representation integrals. Of particular interest is the scattering cross-section. The results can be used to determine the attenuation of a longitudinal wave propagating in a solid with a dilute random distribution of whiskers of the shape analyzed in this paper.