摘要
研究了结构陶瓷材料的统计分布规律。首先通过实验测试了两种 Al2 O3陶瓷光滑试件和不同缺口半径试件的断裂强度 ;对实验数据用正态分布和 Weibull分布分别进行了分析 ,发现对于缺口件 ,用正态分布描述其断裂强度分散性要比 Weibull分布好一些。这也说明在对陶瓷材料结构件进行设计时 。
The failure stress of two kinds of alumina with six different notch radii were tested. Statistical analysis of the fracture strength indicates that although the fracture strength of smooth specimens conforms to a Weibull distribution, the fracture strength of notched specimen conforms to a normal distribution. The test results show that fracture toughness of structural ceramics also conforms to normal distribution.Therefore the normal distribution will be adopted as reliability design is applied to structural ceramics.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2000年第5期311-314,共4页
Rare Metal Materials and Engineering
基金
西北工业大学"双新计划"资助项目
航空科学基金!(97H5 310 2 )资助项目
