Crack Propagation and Fragmentation Characteristics of Single-Flawed Sandstone Samples under Different Loading Conditions

Table 4

Related parameters.

β	0°	30°	45°	60°	90°
a	0.5908	0.5670	0.7906	1.0910	0.8552
b	0.0139	0.0152	0.0108	0.0068	0.0094