DDA Simulation Study on Mechanical Failure of Heterogenous Rock

Table 1

Time for the cracks to penetrate the disc.

Condition	Heterogeneity index	Time of disc penetration (s)
1	1.5	0.009860
	2.5	0.013458
	5	0.021193
	200	0.034521
2	1.5	0.027543
	2.5	0.027806
	5	0.029777
	200	0.034973