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.
出处
《核科学与工程》
CSCD
北大核心
1991年第2期97-103,4,共7页
Nuclear Science and Engineering
