期刊论文

Liu, Taoying

英文

Engineering Geology

0013-7952

2015

187

113-121

10.1016/j.enggeo.2014.12.010

Acknowledgment This paper obtains its funding from projects (51174228, 51274249, 51304240, 51474249) supported by the National Natural Science Foundation of China, the State Scholarship Fund from the China Scholarship Council (no. 201306370091), a project (1132-7138010002) supported by the Hunan Provincial Innovation Foundation for Postgraduate, and the Scholarship Award for Excellent Doctoral Student granted by Central South University. The authors wish to acknowledge these supports.

本校为其他机构

Fracture coalescence, which plays an important role in the behavior of brittle materials, is investigated by loading rock-like specimens with two and three pre-existing flaws made by pulling out the embedded metal inserts in the pre-cured period. Different geometries are obtained by changing the angle of the flaws with respect to the direction of loading and the spacing. With reference to the experimental observation of crack initiation and propagation from pre-existing flaws, the influences of the third pre-existing flaw on the cracking proces...