Abstract

The constitutive and fracture models of single-phase structure have been obtained by combining simulation and experiment. Mechanical properties of multiphase are predicted using the liner-mixture rule and representative volume element (RVE) method. The results show that the stress calculated by the linear criterion is always higher and the curve obtained by the RVE model matches better with the experimental value. The fracture strain predicted by the linear criterion is always higher than the predicted value of the RVE model and experiment, and the prediction accuracy of the RVE model is higher than that of the linear criterion in general.

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