Research Article
An Experimental Investigation of the Progressive Failure of Sandstone and Its Energy Evolution Characteristics
Table 1
Size,
H/
D, Young’s modulus (
), peak strength (
), and peak axial strain (
) of the sandstone specimens.
| Specimen | Diameter (mm) | Height (mm) | H/D | (MPa) | (GPa) | (10−3) | (MPa) |
| S60-1 | 49.68 | 60.75 | 1.2 | 0 | 21.36 | 6.46 | 79.27 | S60-2 | 49.42 | 60.69 | 1.2 | 0 | 22.41 | 6.06 | 85.41 | S100-1 | 49.52 | 101.28 | 2 | 0 | 26.11 | 5.21 | 89.50 | S100-2 | 49.56 | 99.62 | 2 | 0 | 24.14 | 5.43 | 80.28 | S100-3 | 49.73 | 100.01 | 2 | 5 | 31.08 | 7.38 | 135.5 | S100-4 | 49.49 | 101.30 | 2 | 10 | 35.72 | 7.91 | 169.2 | S100-5 | 49.61 | 100.69 | 2 | 15 | 35.34 | 10.18 | 211.9 | S120-1 | 49.45 | 121.3 | 2.4 | 0 | 24.54 | 5.20 | 74.65 | S120-2 | 49.55 | 119.9 | 2.4 | 0 | 24.67 | 4.89 | 71.75 |
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