The Open Mechanics Journal

2008, 2 : 62-66
Published online 2008 July 07. DOI: 10.2174/1874158400802010062
Publisher ID: TOMECHJ-2-62

The Application of the Boundary Element Method to the Problem of Wave Diffraction from a Diamond Shaped Inclusion

Yasuhide Shindo , Tasuku Nakamura and Fumio Narita
Department of Materials Processing, Graduate School of Engineering, Tohoku University, Aobayama 6-6-02, Sendai 980-8579, Japan.

ABSTRACT

We investigate the scattering of in-plane compressional (P) and shear (SV) waves by diamond shaped inclusions using a boundary element method. Special case that the shape of the diamond becomes square is also considered. Numerical results for some diamond shapes of the inclusion are obtained, and the effects of frequency on the scattering cross sections are discussed in detail. The response simplifies for the limited cases of a hole and a rigid inclusion, but with quite different behavior for each. Calculations for a diamond shaped SiC-fiber-reinforced Al composite are also carried out, and the results are shown graphically.