Abstract
Plane wave propagation of both longitudinal and shear waves through a medium containing a random distribution of randomly oriented spheroidal inclusions has been considered. In particular, the effect of thin interface layers between the inclusions and the matrix is investigated. The scattering problem for one inclusion with or without an interface layer is solved first by the null field approach and the effective phase velocity and attenuation are then obtained following the simple approach of Foldy. Numerical results are given for SiC inclusions of different aspect ratios in an Al matrix and the presence of the interface layers is seen to give rise to measurable effects.
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