Study on the scattering of 2-D Rayleigh waves by a cavity based on BEM simulation

Weiwei Liu, Younho Cho*, Haidang Phan, Jan D. Achenbach

*Corresponding author for this work

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

A frequency domain boundary element method is introduced in this paper to simulate the scattering of two-dimensional Rayleigh waves by a cavity on the surface of an elastic half-space. This numerical method allows the Rayleigh wave to escape the truncated boundary without producing any spurious reflections. The numerical results of the displacements and stresses of a 2-D Rayleigh wave which travels along a flat surface of an elastic half-infinite medium are in good agreement when compared with theoretical ones. The problem of a Rayleigh wave scattering by a cavity on the surface of an elastic half-infinite medium is simulated by the proposed numerical method. The result is taken as the benchmark to introduce an approximate analytical method for such problems of scattering by a cavity on the surface. This numerical method is formulated for a two-dimensional homogeneous, isotropic, linearly elastic half-space and its implementation in a frequency domain boundary scheme is discussed in detail.

Original languageEnglish (US)
Pages (from-to)797-802
Number of pages6
JournalJournal of Mechanical Science and Technology
Volume25
Issue number3
DOIs
StatePublished - Mar 1 2011

Keywords

  • 2-D elastodynamics
  • BEM
  • Cavity
  • Elastic-half space
  • Rayleigh waves
  • Truncated boundary

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering

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