含共晶界面复合陶瓷细观力学研究

Research on Micromechanics Damage of Composite Ceramic with Eutectic Interphases

概述了含共晶界面复合陶瓷细观力学研究的意义,并从复合材料细观应力应变场、细观损伤、裂纹扩展模型及尺度效应研究等四个方面重点论述了复合陶瓷当前研究现状。根据含共晶界面复合陶瓷的弹性常数及有效应力场,从应变场的角度总结并指出了共晶基复合陶瓷的发展趋势、研究方向和有待解决的新课题,为建立更加完善的细观力学模型提供研究思路。

The significanc, e for the micromechanics damage of composite ceramic with eutectic interphases was summarized herein. The recent status on composite ceramic with eutectic interphases were described in details from four aspects, they were micromechanical stress field and strain field, micromechanics damage, crack propagation model and size dependent. Considering the elastic constants and effective stress field of composite ceramic with eutectic interphase, the prospects, the further research direction and new subjects were proposed in view of strain field. To establish the perfect theoretical mechanics model, a research method was provided.