アルミナ/SiC複合セラミックスにおける自己治癒過程の有限要素解析

抄録

In this study, we apply the previously proposed constitutive model to a series of healing-damage processes in self-healing ceramics. The numerical model is imitated a series of experiment of alumina/15 vol.% SiC composites. In the FE analysis, first, an initial damage region due to Vickers indentation is healed under certain temperature and oxygen partial pressure conditions. We then perform the three-point bending analysis, to consider the self-healing effect. Based on FEA results, it is confirmed that the material strength and stiffness in the bending test depend on the healing time and environment as observed in the experiment.