核容器接管区内壁角裂纹断裂分析  

FRACTURE ANALYSIS OF THE CORNER CRACK IN INSIDE OF THE WALL OF THE NOZZLE FOR NUCLEAR VESSEL

作　　者：徐定耿[1] 叶维娟[1] 梁星筠[1] 王柏松[1] 

机构地区：[1]上海核工程研究设计院

出　　处：《核科学与工程》1991年第2期97-103,4,共7页Nuclear Science and Engineering

摘　　要：核电站反应堆压力容器接管区内壁角裂纹应力强度因子的求解是复杂的三维问题,不可能用解析法来求得精确解。本文用一种改进的三维等参奇异元进行三维有限元分析,求得角裂纹应力强度因子,计算结果与对应的三维光弹性模型试验结果及工程计算方法作了比较。The computation of stress intensity factor of corner crack in inside of the wall of the nozzle for nuclear vessel is a complicated 3-D problem.The finite element method is a powerful tool for this case.The improved 3-D degenerated isoparametic singular element with quarter point is applied.The result of SIF of the corner crack in inside of the wall of the nozzle for RPV of a typical 300MW nuclear power station is compared with the results of 3-D photo-elastic test and engineering method.

关 键 词：压力容器 反应堆 接管 裂纹 

分 类 号：TL351.6[核科学技术—核技术及应用]