THERMOELASTIC PROPERTIES OF COMPOSITES CONTAINING ELLIPSONIDAL INHOMOGENEITIES

摘要

This article studies the thermal stresses and the effecive thermoelastic properties of composites containing ellipsoidal inhomogeneities. The cluster scheme developed recently by A. Molinari and E. El Mouden in The Problem of Elastic Inclusions at Finite Concentration, Int. J. Solids Struct, vol.33, pp. 3131-3150, 1996, for the case of elastic inclusions embedded in an isotropic elastic matrix, is generalized to the case of ellipsoidal thermoelastic inclusions embedded in an anisotropic thermoelastic matrix. The shape, spatial distribution, and orientation of the inhomogeneities are taken into account in our scheme. The theoretical results for a composite of S_iO_2 particles in a Kerimid matrix are in good agreement with experimental meausrements.