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1. 维氏压头产生径向裂纹示意图

Fig. 1. Schematic diagram of radial crack with Vickers indenter