Table 6 Dynamic parameters of combined bodies with confining pressure under higher strain rate.
From: Dynamic response and failure characteristics of combined rocks under confining pressure
Confining pressure | Number | Strain rate (s−1) | Compressive strength (MPa) | Ultimate strain (%) | Peak strain (%) | Elastic modulus (GPa) |
|---|---|---|---|---|---|---|
5 MPa | H5-1 | 138.54 | 50.58 | 1.206 | 0.779 | 26.22 |
H5-2 | 130.78 | 45.60 | 1.262 | 0.643 | 21.63 | |
H5-3 | 134.90 | 47.01 | 1.262 | 0.633 | 25.37 | |
10 MPa | H10-1 | 100.04 | 43.32 | 1.073 | 0.565 | 21.56 |
H10-2 | 135.93 | 49.83 | 1.276 | 0.633 | 26.31 | |
H10-3 | 145.67 | 51.76 | 1.338 | 0.673 | 27.03 | |
15 MPa | H15-1 | 113.05 | 50.17 | 1.174 | 0.774 | 27.29 |
H15-2 | 129.31 | 47.94 | 1.220 | 0.583 | 31.78 | |
H15-3 | 130.83 | 52.74 | 1.159 | 0.554 | 36.76 |
