Boundary-integral equation method for elastodynamic scattering by a compact inhomogeneity

M. Kitahara*, K. Nakagawa, Jan Drewes Achenbach

*Corresponding author for this work

Research output: Contribution to journalArticle

20 Scopus citations


The set of singular integral equations which relates unknown fields on the surface of the scatterer to a time-harmonic incident wave is solved by the boundary element method. The general method of solution is discussed in some detail for scattering by an inclusion. Results are presented for a spherical cavity, and for a soft and a stiff spherical inclusion. Fields on the surface of the scatterer are compared with previous results obtained by different methods. Back-scattered and forward-scattered displacement fields are presented, both as a function of position at fixed frequency, and as a function of frequency at fixed position. The quasi-static approximation is briefly discussed.

Original languageEnglish (US)
Pages (from-to)129-144
Number of pages16
JournalComputational Mechanics
Issue number2-3
StatePublished - Mar 1 1989

ASJC Scopus subject areas

  • Computational Mechanics
  • Ocean Engineering
  • Mechanical Engineering
  • Computational Theory and Mathematics
  • Computational Mathematics
  • Applied Mathematics

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