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Study of fracture criterion of rock motar interface crack

Li Zhe, Zhang Haobo, Jian Zheng, Huang Songmei, Zhao Xiangchao ( Dept. of Archit. Eng., Xi'an Univ. of Technol, China )  
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.
【Fund】: 国家自然科学基金
【CateGory Index】: TV313
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