Effective Properties of Composite Material Based on Total Strain Energy Equivalence
In the present work the mechanical equivalence hypothesis, classically used in continuum damage mechanics problems, was applied to estimate the elastoplastic properties of isotropic composite materials. The equivalence of total internal energy was postulated between a real, heterogeneous composite material, and a fictitious, quasi-homogeneous configuration. The properties of a composite material were expressed as analytical functions of an inclusion volume fraction and properties of constituent materials. The results were compared with the results of several other methods of efective elastic properties estimation. In the inelastic range of the material response the proposed approach was examined by means of parametric studies to showits ability to reflect different experimentally observed features of real composite materials.
KeywordsEffective properties Composite material Constitutive modeling
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