Table 1 RHT parameters of rocks.
From: Numerical simulation of blasting behavior of rock mass with cavity under high in-situ stress
Parameter | Value | Parameter | Value |
|---|---|---|---|
Mass density (kg/m3) | 2660 | Break compressive strain rate | 3E + 25 |
Elastic shear modulus (GPa) | 21.9 | Break tensile strain rate | 3E + 25 |
Relative shear strength | 0.18 | Lode angle dependence factor Q0 | 0.68 |
Relative tensile strength | 0.04 | Lode angle dependence factor B | 0.01 |
Parameter for polynomial EOS T1 (GPa) | 35.27 | Compressive yield surface parameter | 0.53 |
Parameter for polynomial EOS T2 (GPa) | 0 | Tensile yield surface parameter | 0.7 |
Damage parameter D1 | 0.04 | Crush pressure (MPa) | 125 |
Damage parameter D2 | 1.0 | Compaction pressure (GPa) | 6 |
Hugoniot polynomial coefficient A1 (GPa) | 35.27 | Shear modulus reduction factor | 0.5 |
Hugoniot polynomial coefficient A2 (GPa) | 39.58 | Eroding plastic strain | 2.0 |
Hugoniot polynomial coefficient A3 (GPa) | 9.04 | Minimum damaged residual | 0.01 |
Failure surface parameter A | 1.60 | Porosity exponent | 3.0 |
Failure surface parameter N | 0.61 | Initial porosity | 1.0 |
Residual surface parameter AF | 1.60 | Pressure influence on plastic flow in tension | 0.001 |
Residual surface parameter NF | 0.61 | Tensile strain rate dependence exponent | 0.036 |
Parameter for polynomial EOS B0 | 1.22 | Compressive strength (MPa) | 167.8 |
Parameter for polynomial EOS B1 | 1.22 | Compressive strain rate dependence exponent | 0.032 |
Reference compressive strain rate | 3E − 05 | Gruneisen gamma | 0 |
Reference tensile strain rate | 3E − 06 |  |  |
