Acoustic Wave Scattering from a Circular Crack: Comparison of Different Computational Methods
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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
This work was motivated by a disagreement between the results obtained from two computations of scattering of an axially incident elastic p-wave on a circular crack. One calculation, using the method of Mai [1], involving the direct solution of the Helmholtz integral equation for this case, shows the total cross-section oscillating with a considerable amplitude about σtot = 27πa2 as a function of kRa with period π, where kR = 2π/λR 2 is the Rayleigh surface wavenumber.