Discrete Element Modeling on Mechanical Behavior of Heterogeneous Rock Containing X-Shaped Fissure under Uniaxial Compression

Table 4

The crack initiation stress and damage stress of numerical models.

(°)	(°)	(MPa)	(MPa)	(MPa)
Intact		74.2	153.8	183.0	0.41	0.84
45	15	44.5	90.3	110.3	0.40	0.82
45	30	43.0	82.7	104.0	0.41	0.80
45	45	36.8	74.4	91.9	0.40	0.81
45	60	45.7	76.5	95.1	0.48	0.80
45	75	44.0	73.4	96.1	0.46	0.76
45	90	43.8	70.8	87.2	0.50	0.81
0	60	37.5	74.4	89.5	0.42	0.83
15	60	34.7	71.3	86.4	0.40	0.83
30	60	34.1	79.5	95.0	0.36	0.84
45	60	45.7	76.5	95.1	0.48	0.80
60	60	49.3	83.6	102.0	0.48	0.82
75	60	43.4	84.2	104.1	0.42	0.81
90	60	55.2	102.5	127.0	0.44	0.81