Research Article
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 (106) | mt | E2 (GPa) | Fc (106) | 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 |
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