Table 3: Parameter determination of the damage constitutive model of (46).

Confining pressures, σ3 (MPa)Parameter determination
m

1.01.1948E−012.4424E−01
2.07.3400E−022.4753E−02
4.04.8047E−025.6572E−05
5.03.5515E−024.6744E−07
6.02.7221E−021.6468E−10
8.02.5790E−021.3385E−11
10.02.0809E−024.0019E−15
14.01.7408E−022.1848E−18
16.01.6381E−024.4111E−19