Coupled Systems Mechanics

Volume 1, Number 2, 2012, pages 183-204

DOI: 10.12989/csm.2012.1.2.183

A boundary-volume integral equation method for the analysis of wave scattering

Terumi Touhei

Abstract

A method for the analysis of wave scattering in 3-D elastic full space is developed by means of the coupled boundary-volume integral equation, which takes into account the effects of both the boundary of inclusions and the uctuation of the wave field. The wavenumber domain formulation is used to construct the Krylov subspace by means of FFT. In order to achieve the wavenumber domain formulation, the boundary-volume integral equation is transformed into the volume integral equation. The formulation is also focused on this transform and its numerical implementation. Several numerical results clarify the accuracy and effectiveness of the present method for scattering analysis.

Key Words

coupled boundary-volume integral equation; fast Fourier transform; elastic wave scattering; wavenumber domain formulation; Krylov subspace iteration technique

Address

Terumi Touhei: Department of Civil Engineering, Tokyo University of Science, 2641 Yamazaki, Noda City 278-8510, Japan