Experiment and Applications of Dynamic Constitutive Model of Tensile and Compression Damage of Sandstones

Table 1

Mechanical parameters of rocks in the numerical simulation.

	(s^−1)	E0 (GPa)	Ft (10^6)	mt	E2 (GPa)	Fc (10^6)	mc	(10^−6s)
Compression	271.4	22.2	5.1	2.5	2.0	50	4.35	77.3
	334.2	22.2	6.7	2.5	4.0	62	4.35	77.3
	412.5	22.2	7.0	2.5	10.0	105	4.35	77.3
	501.6	22.2	9.3	2.5	14.0	130	4.35	77.3
Split	143.0	42.2	20.1	2.5	20	350	4.35	7.3
	262.1	42.2	18.1	2.5	25	500	4.35	7.3
	303.7	42.2	20.1	2.5	28	540	4.35	7.3
	340.9	42.2	25.1	2.5	29	610	4.35	7.3