摘要
研究了功能梯度材料富陶瓷区金属颗粒界面断裂能量释放率。采用双层嵌套模型给出了金属颗粒界面的热应力与金属体积浓度的关系,对于得到的每一梯度层中的颗粒界面热应力,分析了颗粒界面断裂能量释放率。
The study on the energy release rate for cracks propagating of particle and matrix interface in functionally gradient materials(FGM) was carried out.The thermal stress for the matrix-particle interface was calculated using Double-Layer-Embedment model,also the relation between the stress and metal volume fraction was obtained,and then the energy release rate and the change of critical particle size (radius) in the graded layers were given.
出处
《功能材料》
EI
CAS
CSCD
北大核心
1999年第4期385-386,共2页
Journal of Functional Materials
基金
国防科工委预研项目资助
关键词
功能梯度材料
金属颗粒
界面
热应力
能量释放率
functionally gradient materials(FGM)
particle
interface
thermal stress
energy release rate