Study on the Dynamic Evolution of Through-Crack in the Double Hole of Elliptical Bipolar Linear-Shaped Charge Blasting

Table 3

Material parameters of rock [23].

Parameters	Property	Value
ρ (g·cm^−3)	Density	2.18
G (GPa)	Shear modulus	14.86
A	Normalized cohesive strength	0.79
B	Normalized pressure hardening	1.60
C	Strain rate coefficient	0.007
Sfmax	Normalized maximum strength	7
εfmin	Amount of plastic strain before fracture	0.01
N	Pressure hardening exponent	0.61
D1	Damage constant 1	0.04
D2	Damage constant 2	1