结构检查维修时疲劳裂纹尺寸的概率分布

Probabilistic Distribution of Fatigue Crack Size For lnspectable Structure

近年来，以可靠性为中心的结构设计思想不断得到完善和发展。开展全寿命结构可靠性研究对航空、航天以及核反应堆等结构安全性、寿命评估和风险分析都具有重要意义。本文基于概率分析方法，给出了结构在检查维修时的疲劳裂纹尺寸概率分布。

WT5”BZ〗In recent years,increasing attention is being given to structure design and analysis method based on reliability in the important fields ,such as aeronautical,astronautical and nuclear reactor engineering ,for obtaining long life and high safety.Utilizing the probability analysis method ,we now present the probabilistic distribution of fatigue crack size for inspectable structure, which is one of the important factors in reliability model.The results may build a basis for establishing new fatigue reliability analysis model.