分层取样法在计算球罐断裂失效概率中的应用

Stratified Sampling in Fracture Probability Analysis of Spherical Tanks

分层取样法是针对直接蒙特卡洛法求解效率低的一种改进方法。本文结合实例，在探讨如何分层的基础上，计算了球罐失效概率，从而可知，该法减少了模拟计算次数并且提高了计算精度。

In this paper,we discussed how to determine the flaw-size range,then,calculatedthe fracture probability of spherical tanks. From the results of calculation,we know that thismethod is better than the direct Monte-Carlo method.