Abstract
The scattering of elastic waves in a plate by a distribution of inclusions and/or cracks within a finite zone is studied by a combination of analytical and finite element methods. The incident field is generated by either a time harmonic beam of finite width or guided waves. A part of the plate containing the inclusions/cracks (interior region) is modeled by conventional finite elements. The far-field (exterior region) is approximated by a number of guided (Lamb) wave modes with real wave numbers. The scattered and total fields (displacements and stresses) are obtained by matching the two regions to satisfy the displacement and stress compatibilities at the near field-far field boundary. Numerical results are presented showing the effects of cracks and inclusions in a plate.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2355-2367 |
| Number of pages | 13 |
| Journal | International Journal of Solids and Structures |
| Volume | 29 |
| Issue number | 19 |
| DOIs | |
| State | Published - 1992 |
ASJC Scopus subject areas
- Modeling and Simulation
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Applied Mathematics