基于微米力学实验的页岩I型断裂韧度表征 1)
韩强***2)(),屈展***,叶正寅**,董广建††
STUDY ON FRACTURE TOUGHNESS OF MODE I OF SHALE BASED ON MICRO-MECHANICAL TEST 1)
Han Qiang***2)(),Qu zhan***,Ye Zhengyin**,Dong Guangjian††

图6. 玻氏压头在页岩表面的残余压痕

Fig. 6. The residual indentation of shale surface produced by Berkovich indenter