摘要
首先导出了疲劳裂纹扩展的确定性方程,然后将疲劳裂纹扩展确定性方程随机化,导出了疲劳裂纹随机扩展的概率公式,并推导了疲劳裂纹随机扩展的置信限公式,最后,给出了二种材料疲劳裂纹随机扩展数据的处理结果。
First of all, the determinatic growth equation of fatigue crack is presented. After randomization of the determinatic equation, the random growth equation of fatigue crack is derived. Then the confidence limit equation of fatigue crack growth is obtained. At last, two examples that the data of two kinds of material are analyzed are given.
出处
《应用力学学报》
CAS
CSCD
北大核心
1998年第4期82-86,共5页
Chinese Journal of Applied Mechanics
基金
国家自然科学基金部分资助
关键词
确定性
随机性
概率
置信度
疲劳裂纹扩展
可靠性设计
determinatic, stochastic, probability, confidence level, fatigue carck growth.