PROBABILISTIC SAFETY ASSESSMENT FOR A PRESSURE PIPE WITH CIRCUMFERENTIAL SURFACE FLAW

摘要：

Due to the random of flaw size, applied loads and material properties, a probabilistic safety assessment on a pressure pipe with circumferential surface flaw is adopted with the failure probability calculated, applying Mento Carlo (MC) simulation. An analysis of p (Lr, Kr), the joint probability density function for (Lr, Kr), is performed together with single sample Kolmogorov-Smirnov (K-S) goodness-of-fit hypothesis tests on Lr and Kr. It is found that contours of p (Lr, Kr) are supposed to be series of ellipses approximately; the distributions of Lr and Kr fit the lognormal distribution well. Sensitivity of the failure probability to stochastic parameters is performed using an interval method, instead of the calculus of differences.

作者: Y. Zhou Q.P. Zhong Z. Zhang

作者单位: School of Material Science And Engineering, Beihang University, Beijing 100083, China

会议类型: 国际会议

会议名称: 第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-10-15（万方平台首次上网日期，不代表论文的发表时间）