Numerical modeling and prediction of mechanical properties of ceramic composite

The paper is devoted to the numerical simulation of the composite consisting of ZrO2-based ceramics and cortical bone performed with making use of a multi-scale approach. The specificity of the approach considered is the using of a geometrical model of the composites representative volume that must be generated with taking into account the composite reinforcement structure. It is shown that such approach can be used to predict the value of composite macroscopic ultimate strength. The evolution of mesoscopic stress distributions in the composite components during its deformation was investigated with taking into account damage accumulation up to the fulfillment of the macroscopic strength criterion. It is shown that damage accumulation has an impact on the stress distribution laws at the mesoscopic level, which is manifested in the appearance of a threshold for the stress distribution, as well as in a significant decrease in distribution amplitude.