On modelling three-dimensional elastodynamic wave propagation with boundary spectral element method

Fangxin Zou, M. H. Aliabadi

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)

Abstract

In this paper, a boundary spectral element method (BSEM) for solving the problem of three-dimensional wave propagation is introduced. In the new formulation, elastodynamics of structures is computed by the Laplace transformed boundary element method (BEM), and boundaries of structures are discretised into high-order isoparametric spectral elements. Three types of spectral elements–Lobatto, Gauss–Legendre and Chebyshev elements–have been implemented. With a significantly higher computational efficiency than the conventional BEM, the BSEM provides a competitive alternative for modelling high-frequency wave propagation in engineering applications.

Original languageEnglish
Pages (from-to)204-228
Number of pages25
JournalEuropean Journal of Computational Mechanics
Volume27
Issue number3
DOIs
Publication statusPublished - 4 May 2018
Externally publishedYes

Keywords

  • Boundary element method
  • boundary integral equation
  • Chebyshev element
  • Gauss–Legendre element
  • Lobatto element
  • spectral element method
  • wave propagation

ASJC Scopus subject areas

  • Modelling and Simulation
  • Mechanics of Materials
  • Mechanical Engineering

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