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 language | English (US) |
|---|---|
| Pages (from-to) | 797-802 |
| Number of pages | 6 |
| Journal | Journal of Mechanical Science and Technology |
| Volume | 25 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 2011 |
Funding
This work was carried out in the course of research sponsored by the World Class University (WCU) program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology (R33-10155), and with the editing help from Mr. Taeho Ju.
Keywords
- 2-D elastodynamics
- BEM
- Cavity
- Elastic-half space
- Rayleigh waves
- Truncated boundary
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering