Anisotropy of crack initiation strength and damage strength of coal reservoirs

HAO Xianjie,WEI Yingnan,YANG Ke,SU Jian,SUN Yingfeng,ZHU Guangpei,WANG Shaohua,CHEN Haibo,SUN Zhuowen

Fig. 5. The variations of crack initiation strength, damage strength and compressive strength with bedding angle.