摘要
用三维边界元法(BEM)标定了一种岩石断裂韧度试样的柔度,求出了这种试样的平均无量纲应力强度因子(SIF),并得到了对应于最大载荷时的临界裂纹长度和平均无量纲SIF的最小值.
In this paper, three-dimensional boundary element method was used in the calibration of compliance for a fracture toughness specimen of rock,average dimensionless stress intensity factor for this specimen was obtained,the critical crack length and minimum value of average dimensionless stress intensity factor corresponding to the maximum load were derived.
出处
《应用力学学报》
CAS
CSCD
北大核心
1992年第4期31-36,136,共6页
Chinese Journal of Applied Mechanics
关键词
应力强度因子
岩石
断裂韧度
stress intensity factor (SIF)
boundary element method (BEM)
fracture toughness of rock
