Research Article
Study on Dynamic Behavior and Energy Dissipation of Rock considering Initial Damage Effect
Table 3
Dynamic mechanical parameters of sandstone with different damage degrees.
| No. | Ed (GPa) | σd (MPa) | εd (%) | Single specimen | Average | Single specimen | Average | Single specimen | Average |
| X0-1 | 57.68 | 59.17 | 93.57 | 90.53 | 1.09 | 1.18 | X0-2 | 61.65 | 86.48 | 1.18 | X0-3 | 58.17 | 91.53 | 1.28 |
| X5-1 | 52.78 | 54.42 | 84.94 | 82.62 | 1.21 | 1.27 | X5-2 | 57.17 | 79.84 | 1.34 | X5-3 | 53.31 | 83.09 | 1.27 |
| X10-1 | 43.31 | 45.57 | 63.75 | 65.38 | 1.68 | 1.63 | X10-2 | 46.76 | 66.01 | 1.56 | X10-3 | 46.63 | 66.38 | 1.64 |
| X20-1 | 29.03 | 31.95 | 44.87 | 44.41 | 1.76 | 1.76 | X20-2 | 35.49 | 43.22 | 1.71 | X20-3 | 31.32 | 45.15 | 1.82 |
| X30-1 | 28.49 | 27.15 | 43.89 | 40.50 | 1.94 | 1.93 | X30-2 | 25.34 | 41.94 | 1.86 | X30-3 | 27.63 | 35.67 | 1.98 |
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