Crack Initiation Behaviors of Granite Specimens Containing Crossing-Double-Flaws with Different Lengths under Uniaxial Loading

Table 4

Force concentrations around the crossing-double-flaws at of 30° when the initiation of first macrocracks.

Conditions	Stress fields around crossing-double-flaws	Stress fields’ rotation
= 30°,  = 0°
= 30°,  = 30°
= 30°,  = 45°
= 30°,  = 60°
= 30°,  = 90°