Micromechanics model for particulate composites

The elastic and elastoplastic response of particulate composite materials is described in terms of a micromechanics model, based on previous works. This model initially proposed to determine the elastic stiffness of various types of composites, is now combined with the self-consistent model for plastic deformation. Through this analysis, the macroscopic properties of heterogeneous materials are linked with their microstructural parameters. Constitutive laws for plastic deformation are written for both material structures, i.e. matrix and inclusions. The proposed model was successfully applied on tensile experimental results for metal matrix particulate composites and polymer/nanosilica composite materials.