Ultrasonic Scattering by a Surface-Breaking Void
This work addresses ultrasonic scattering by a void that breaks the surface of an elastic half-space. The two-dimensional problem is considered for which a compressional, vertically polarized shear- or Rayleigh-surface wavefield is incident perpendicular to a groove contained in the traction-free surface of an elastic half-space. Numerical results are presented for a V-shaped groove which demonstrate the effects on scattering by a surface-breaking crack that has opened.
Unable to display preview. Download preview PDF.
- 1.J. D. Achenbach, Wave Propagation in Elastic Solids (North Holland, Amsterdam, 1973).Google Scholar
- 2.J. E. Gubernatis, E. Domany, and J. A. Krumhansl, Elastic Wave Scattering Theory with Application to Nondestructive Evaluation, Los Alamos Scientific Laboratory Report No. LA-UR-2393, 1979.Google Scholar
- 3.E. R. Lapwood, Philos. Trans. R. Soc. London A242, G3–100 (1949).Google Scholar
- 4.R. A. Roberts, submitted to J. Acoust. Soc. Am.Google Scholar
- 5.R. A. Roberts, Ph.D. dissertation, Northwestern University, 1985.Google Scholar
- 10.D. E. Budrek and J. D. Achenbach, submitted to J. Acoust. Soc. Am.Google Scholar
- 11.Y. C. Angel, private communication, 1986.Google Scholar
- 12.R. A. Roberts, in Proc. 16th Symposium on NDE, edited by C. D. Gray and G. A. Matzkanin (Nondestructive Testing Information Analysis Center, San Antonio, TX, 1987), pp. 224–230.Google Scholar