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.
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References
A. K. Mal, Int. J. Eng. Sci. 8, 381 (1970).
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M. Abramowitz and I. A. Stegun, “Handbook of Mathematical Functions,” (National Bureau of Standards, 1964 ).
Gerhard Kristensson and P. C. Waterman, J. Acoust. Soc. Am. 72, 1612 (1982).
William M. Visscher, unpublished.
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© 1987 Springer Science+Business Media New York
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Visscher, W.M. (1987). Acoustic Wave Scattering from a Circular Crack: Comparison of Different Computational Methods. In: Thompson, D.O., Chimenti, D.E. (eds) Review of Progress in Quantitative Nondestructive Evaluation. Review of Progress in Quantitative Nondestructive Evaluation, vol 6 A. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-1893-4_8
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DOI: https://doi.org/10.1007/978-1-4613-1893-4_8
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