Elastic wave scattering from irregular voids

Bernhard R. Tittmann, E. Domany, J. L. Opsal, K. E. Newman

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Abstract

Results are presented for elastic wave scattering from irregular voids embedded in Ti alloy by the diffusion bonding process. The defects examined are: two overlapping spherical voids of unequal radii, two overlapping voids consisting of a sphere and a prolate spheroid, and a spherical void with an encircling crack. Representative plots are given for the raw waveforms, magnitude of the deconvolved Fourier transform, and in some cases the time impulse response function. The data are compared to and analyzed in terms of two current theoretical approaches. While good quantitative agreement was observed over certain ranges, the comparisons point to definite (in some cases not unexpected) limitations in either the pertaining theory or experiment or both. The results are discussed with an eye toward applications to nondestructive evaluation.

Original languageEnglish (US)
Pages (from-to)6079-6085
Number of pages7
JournalJournal of Applied Physics
Volume54
Issue number11
DOIs
StatePublished - Dec 1 1983

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Tittmann, B. R., Domany, E., Opsal, J. L., & Newman, K. E. (1983). Elastic wave scattering from irregular voids. Journal of Applied Physics, 54(11), 6079-6085. https://doi.org/10.1063/1.331943