Diffraction and refraction of surface waves using finite and infinite elements
β Scribed by P. Bettess; O. C. Zienkiewicz
- Publisher
- John Wiley and Sons
- Year
- 1977
- Tongue
- English
- Weight
- 923 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0029-5981
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
The wave problem is introduced and a derivation of Berkhoff's surface wave theory is outlined. Appropriate boundary conditions are described, for finite and infinite boundaries. These equations are then presented in a variational form, which is used as a basis for finite and infinite elements. The elements are used to solve a wide range of unbounded surface wave problems. Comparisons are given with other methods. It is concluded that infinite elements are a competitive method for the solution of such problems.
π SIMILAR VOLUMES
We consider a two-dimensional wave di raction problem from a closed body such that the complex progressive wave potential satisΓΏes the Sommerfeld condition and the Helmholtz equation. We are interested in the case where the wavelength is much smaller than any other length dimensions of the problem.
The response of capacitive array sensors in the presence of flawed solid materials is simulated using finite elements and infinite elements with exponential decay. Conventional finite elements are used to model the critical regions near the probe and the surface of the solid. Infinite elements are u