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无机材料学报

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陶瓷切口强度的概率分布(Ⅱ)预测

鄢君辉; 郑修麟; 孟亮; 文潮   

  1. 西北工业大学材料科学与工程系; 西安710072
  • 收稿日期:1997-07-17 修回日期:1997-09-08 出版日期:1998-10-20 网络出版日期:1998-10-20

Probability Distribution of Notch Strength of Ceramics (Ⅱ) Prediction of Probability distribution of Notch Strength

YAN Jun-Hui; ZHENG Xiu-Lin; MENG Liang; WEN Chao   

  1. Department of Materials Science & Engineering Northwestern Polytechnical UniversityXi an 710072 China
  • Received:1997-07-17 Revised:1997-09-08 Published:1998-10-20 Online:1998-10-20

PDF (PC)

736

被引次数

25

摘要： 根据前文的研究结果[1]，本文给出了陶瓷的弯曲强度实验结果预测切口强度概率分布的程序．结果表明，陶瓷切口强度服从正态分布、对数正态分布和Weibull分布，并且对这三种分布均可进行预测．陶瓷切口强度上述三种概率分布的预测结果与实验数据符合得很好．可以预测陶瓷切口强度的概率分布对陶瓷构件的设计和可靠性评估具有实际意义．

关键词: 陶瓷, 切口强度, 概率分布, 预测

Abstract: Procedures were developed to predict the probability distribution of notch strength of ceramics from the flexural strength of ceramics based on our recent research[1].
It is shown that the notch strength of ceramics follows the normal distribution, the log-normal distribution and Weibull distribution, and all of the above distributions
can be predicted. The predicted results of three probability distributions of notch strength of ceramics mentioned above are in good agreement with test results. The possibility
of predicting the probability distribution of notch strength of ceramics is of practical importance in the design and the reliability assessment of ceramic structure elements.

Key words: ceramics, notch strength, probability distribution, prediction

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