Abstract
The experimental-analytical model of nonlinear homogenization of matrix composites is developed on the basis of the Mori-Tanaka secant model. The calculation results of the analytical model are "fitted" to the experimental results. The fitting parameter is the ratio of constrained equivalent strains of the matrices of the experimental sample and the Mori-Tanaka model. Identification of the fitting parameter is performed using the experimental stress-strain curve for the basic composite composition. A linear dependence of the fitting parameter on the volume fraction of particles is used for a composite of arbitrary composition. The calculation results correspond well to the experimental results.
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