引水用压力钢管弧坑缺陷的安全评定

Safety assessment for penstock's crater defects

对含弧坑缺陷的引水压力钢管,根据有限元计算分析结果,运用在用含缺陷压力容器安全评定标准进行了安全评定,评定结论为该压力钢管壁上的弧坑缺陷是在允许范围内的。

The safety assessment for penstock＇s crater defects was introduced by using criterion of safety assessmen for inservice pressure vessels containing defects based on the calculated results of finite element.Its showed that the penstocks crater defects were in safety.