含表面缺陷压力容器快速疲劳评定

Rapid Fatigue Assessment of Pressure Vessel with Surface Defect

采用快速高效的方法完成了含表面缺陷压力容器的疲劳评定。该方法以核压力容器常用材料为研究对象,给出了关键参数的取值和适用范围。以压力容器的圆筒形结构为典型结构、M310机组一回路温度-压力瞬态为载荷输入,归纳了应力幅值的计算式。上述研究为含表面缺陷压力容器疲劳评定做了技术储备,经工程实践检验,达到了工程应用的要求。

The fatigue performance of pressure vessel with surface defect is assessed by a rapid approach. For common materials in nuclear industry, the parameter and scope of application are determined. For pressure vessel with surface defect, the formula of alternating stress intensity is induced. The approach prepared for pressure vessel with surface defect is applied in engineering and can meet the engineering requirements.