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 language | English |
|---|---|
| Pages (from-to) | 204-228 |
| Number of pages | 25 |
| Journal | European Journal of Computational Mechanics |
| Volume | 27 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 4 May 2018 |
| Externally published | Yes |
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