Research Article
Study on Dynamic Mechanical Properties of Limestone under Uniaxial Impact Compressive Loads
Table 3
Test results of SHPB tests on limestone samples.
| Impact pressure, (MPa) | Sample numbers | Sample thickness/diameter (mm) | Strain rate (s−1) | Dynamic compressive strength (MPa) | Peak strain (10−3) | Fragmentation degree |
| 0.1 | DCL01-1 | 35/50 | 71.50 | 143.56 | 7.09 | Undamaged | DCL01-2 | 35/50 | 74.67 | 152.21 | 7.24 | Penetrating crack | 0.3 | DCL02-1 | 35/50 | 98.78 | 200.14 | 8.02 | Two pieces | DCL02-3 | 35/50 | 104.86 | 189.34 | 8.08 | Two pieces | 0.5 | DCL03-1 | 35/50 | 114.69 | 275.89 | 10.44 | Three pieces and fragments | DCL03-2 | 35/50 | 124.45 | 281.43 | 10.51 | Three pieces and fragments | 0.7 | DCL04-2 | 35/50 | 153.73 | 393.47 | 13.02 | Seven pieces and fragments | DCL04-3 | 35/50 | 156.21 | 390.63 | 13.23 | Eight pieces and fragments | 1.0 | DCL05-1 | 35/50 | 165.96 | 521.28 | 17.01 | Fragments | DCL05-3 | 35/50 | 173.72 | 514.87 | 17.54 | Fragments |
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