Численное исследование деформации и разрушения керамического нанокомпозита с различнымы структурными параметрами при механическом нагружении

Abstract

Deformation, fracture and effective mechanical properties of ceramics composite under uniaxial compression were studied. To perform this investigation the plain model of ceramics composites based on oxides of zirconium and aluminum with different structural parameters was developed within the frame of movable cellular automaton method. The structure of model composite was generated on the basis of scanning electron microscope images of micro-sections of real composite. The influence of such structural parameters as geometrical dimensions of layers, inclusions, and their spatial distribution in the sample, volume content of the composite components and their mechanical properties, as well as the amount of zirconium dioxide undergone the phase transformation on the mechanical response were investigated.