Scattering of elastic waves by a crack in a isotropic plate
ABSTRACT A T-matrix and boundary element hybrid method has been used to study the scattering of elastic waves by a crack in a plate. A fictitious surface is added to the crack to separate the infinite plate into two semi-infinite plates. Expressions for the components of Green's tensors are written in the form of expansions in the normal modes of the plate. The reflection and transmission coefficients of the normal modes are calculated numerically as functions of frequency.
- Journal of The Acoustical Society of America - J ACOUST SOC AMER. 01/1985; 78(2).
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ABSTRACT: The T-matrix method is applied to the problem of scattering of Rayleigh-Lamb modes from a twodimensional cavity in an elastic plate. A formal solution is obtained which is valid also for non-planar surfaces. Explicit expressions and numerical results are given for a plate with plane surfaces.Wave Motion. 01/1984;
- The Journal of the Acoustical Society of America 01/1987; 82(4):1442-1448. · 1.65 Impact Factor