Transient elastic waves in a transversely isotropic plate

R. L. Weaver, W. Sachse, Kwang Yul Kim

Research output: Contribution to journalArticlepeer-review

Abstract

The elastodynamic response of a thick plate, with the axis of transverse isotropy normal to the plate surface, is calculated by double numerical inverse transforms, a method particularly well-suited for calculations of responses in the near field of layered structures. Applications of these calculations include point-source/pointreceiver ultrasonics, quantitative acoustic emission measurements, and seismology. The singularities of the integrand are eliminated by the introduction of a small, but nonzero, imaginary part to the frequency. We discuss issues of numerical efficiency and accuracy in the evaluation of the resulting integrals. The method can be generalized to calculate the responses in materials of more general symmetry, in viscoelastic materials and to include the effects of finite aperture sources and receivers. The calculated responses are compared to those measured in a single crystal specimen of zinc.

Original languageEnglish (US)
Pages (from-to)337-346
Number of pages10
JournalJournal of Applied Mechanics, Transactions ASME
Volume63
Issue number2
DOIs
StatePublished - Jun 1996

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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