Research Article
Destress Blasting of Rock Mass: Multiscale Modelling and Simulation
Table 2
Material properties for JH-2 material for dolomite.
| | Constant | Value | Unit |
| | Density, ρr | 2840.0 | kg/m3 | | Young’s modulus, E | 77320 | MPa | | Bulk modulus, K1 | 50287 | MPa | | Shear modulus, G | 31084 | MPa | | Poisson’s ratio, ν | 0.24 | — | | Hugoniot elastic limit, HEL | 2500 | MPa | | HEL pressure, PHEL | 1440 | MPa | | Maximum tensile strength, T | 30.23 | MPa | | Intact strength coefficient, A | 0.73 | — | | Fractured strength coefficient, B | 0.56 | — | | Strain rate coefficient, C | 0.026 | — | | Intact strength exponent, N | 0.57 | — | | Fractured strength exponent, M | 0.57 | — | | Bulk factor, β | 1 | — | | Damage coefficient, D1 | 0.001 | — | | Damage coefficient, D2 | 1.17 | — | | Pressure coefficient 2, K2 | −78000 | MPa | | Pressure coefficient 3, K3 | 9400000 | MPa | | Maximum normalized fracture strength, | 0 | — |
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