A Micromechanical Model for Layered Porous Materials

Abstract

A micromechanical model for porous layered materials has been developed. The micromechanical approach for layered materials is combined with a poroelastic constitutive model. Explicit expressions for effective elastic moduli, thermal expansion coefficients, and poroelastic moduli are obtained. The effect of pore pressure on the overall deformation of the composites is described by the effective poroelastic constants. The obtained results reduce to those of layered materials when there are no pores. Applications of the obtained model to thermochemically decomposing composites are discussed.