摘要
本文利用作者改进的等效夹杂理论研究了含随机分布晶须和微裂纹陶瓷的微裂纹演化及由其引起的材料本构非线性，定量计算了热残余应变、晶须含量及尺寸比的影响，对材料的微裂纹演化及破坏过程进行了数值模拟。
The modified equivalent inclusion method by the authors is employed to study the evolution of misoriented microcracks and their influence on the mechanic behaviours of whisker/ceramic composites considering the residual thermo-strain,the fraction as well as the aspects of whiskers,and the effective modulus,the nonlinear initial load, strength and constitutive relation are estimated. Some important results are given.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
1996年第1期35-40,共6页
Journal of Astronautics
关键词
微裂纹演化
晶须增韧
陶瓷
材料强度
本构关系
Evolution of microcracks Whisker toughened ceramics Strength Nonlinear constitutive relation
