Research Article
Dynamic Failure Characteristics of Combination Rock under Different Strain Rates: Insights from SHPB Tests
Table 2
Dynamic mechanical parameters of composite specimens for SHPB test.
| Specimen no. | Strain rate (s−1) | Peak stress (MPa) | (J) | (J) | (J) | (J) | η (%) |
| H-S1-0.3 | 143.1 | 101.4 | 313.4 | 147.7 | 117.1 | 48.6 | 15.5 | H-S1-0.35 | 200.7 | 148.7 | 371.0 | 180.2 | 114.4 | 76.4 | 20.6 | H-S1-0.4 | 239.9 | 178.2 | 445.0 | 245.4 | 85.2 | 114.4 | 25.7 | S1-H-0.3 | 165.4 | 113.5 | 264.2 | 181.6 | 49.5 | 33.1 | 13.0 | S1-H-0.35 | 217.7 | 155.1 | 357.7 | 183.8 | 78.7 | 95.2 | 26.6 | S1-H-0.4 | 252.1 | 188.1 | 511.8 | 229.2 | 86.8 | 195.8 | 42.2 | H-S2-0.3 | 195.0 | 132.3 | 318.4 | 129.7 | 84.6 | 104.1 | 32.7 | H-S2-0.35 | 202.4 | 141.2 | 356.1 | 188.1 | 23.4 | 144.6 | 40.6 | H-S2-0.4 | 225.5 | 168.4 | 402.3 | 154.1 | 49.9 | 198.3 | 49.3 | S2-H-0.3 | 172.8 | 113.1 | 254.4 | 112.2 | 65.9 | 76.3 | 30.0 | S2-H-0.35 | 177.6 | 118.7 | 277.0 | 118.4 | 71.1 | 87.5 | 31.6 | S2-H-0.4 | 217.7 | 149.3 | 365.6 | 185.5 | 15.6 | 164.5 | 45.0 | S1-S2-0.3 | 165.8 | 102.3 | 294.2 | 190.7 | 59.1 | 44.4 | 15.1 | S1-S2-0.35 | 230.3 | 130.0 | 387.9 | 220.2 | 76.2 | 91.5 | 23.6 | S1-S2-0.4 | 246.9 | 144.5 | 453.3 | 275.1 | 43.6 | 134.6 | 29.7 | S2-S1-0.3 | 179.8 | 107.5 | 275.4 | 157.4 | 64.3 | 53.7 | 19.5 | S2-S1-0.35 | 216.8 | 113.1 | 349.1 | 224.0 | 45.9 | 79.2 | 22.7 | S2-S1-0.4 | 230.8 | 117.1 | 377.6 | 247.1 | 38.0 | 92.5 | 24.5 |
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Note: the specimen no. H-S1-0.3, H means granite, S1 means cyan sandstone, and 0.3 means gas pressure. |