【摘要】 用杂交元法计算了双材料界面裂缝试件的应力强度因子，采用梁型试件研究了岩石与砂浆界面裂缝的断裂准则．得到了岩石与砂浆界面裂缝临界断裂曲线方程；发现在一定的受力及强度条件下，界面裂缝沿交界面扩展更多还原

【Abstract】 The hybrid element method is used to calculate the stress intensity factors of bimaterial specimens with interface crack. The experimental investigation on fracture criterion of rock motar interface crack is conducted using beam type specimens. The equation of critical fracture curve is obtained. The test results show that crack propagation will occur along the interface under certain loading and strength conditions.更多还原