摘要
接管内拐角部位裂纹的断裂力学分析是很有实际意义的.本文利用三维光弹性冻结切片法对K_I沿平板—接管及圆柱—接管二种模型内拐角裂纹前缘的分布进行了测定,同时,利用所得的实验结果对某些疲劳裂纹扩展现象进行了定性的解释.
The mechanical investiments about nozzle corner cracks are of great importance. Photoelastic researches on K_(?) distributions of plate-nozzle corner cracks and cylinder nozzle corner cracks using the three-dimensional frozen photoelastic method are presented in this paper. Meanwhile, the results obtained here are used to explain qualitatively the phenomena of fatigue crack growth observed before.
出处
《应用力学学报》
CAS
CSCD
北大核心
1992年第4期124-127,142,共4页
Chinese Journal of Applied Mechanics
关键词
应力强度因子
拐角裂纹
光弹性试验
stress intensity factor
photoelastic method
nozzle corner crack
