导弹贮箱的剩余寿命分析

Analysis of Missile Tank Residual Life

根据断裂力学进行结构可靠性分析,利用现有的疲劳裂纹扩展数据或疲劳裂纹扩展试验的不完全数据,对疲劳裂纹扩展的可靠性进行研究,从而推算出剩余寿命。文中算例验证表明,该模型可作为工程应用的一些安全性评定的优先选择的方法和手段。

In this paper the propellant tank is analyzed based on fracture mechanics . The reliability of fatigue crack growth is studied by making use of the existing data or the experimental incomplete data of fatigue crack growth and calculate residual life. Anillustrated example in this paper shows that this model is a better way to evaluatestructural safety on engineering application.