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．
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.
参考文献
| [1] | 鄢君辉(YAN Jun-Hui), 郑修麟, 赵康, 王锋会. 无机材料学报(Journal of Inorganic Materials), 1998, 13 (4): 449--456 2 文潮. 硕士学位论文. 西北工业大学, 1996 3 Wang F H, Zheng X L, Lu M X. Eng. Fract. Mech., 1995, 52 (5): 917--921 4 邓勃. 数理统计在实验测试中的应用. 北京: 化学工业出版社, 1981 5 Schijve J, Fatigue Fract. Engng. Mater. Struct., 1993, 16 (8): 851--859 6 Tanoka S, Ichikawa M, Alcita S. Eng. Fract. Mech., 1984, 20 (3): 501--508 |
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