Research Article
Damage Strengthening Constitutive Model of Cemented Paste Backfill
Table 2
Parameters of damage constitutive model.
| Number | Elastic modulus (MPa) | Peak stress (MPa) | Peak load strain (%) | Residual strength (MPa) | α | m | a (%) | γ (%) |
| 1 | 557.83 | 4.20 | 0.97 | 0.75 | 1.20 | 3.83 | 1.47 | 1.61 | 2 | 1066.64 | 5.96 | 0.73 | 0.82 | 1.16 | 3.70 | 1.09 | 1.25 | 3 | 1234.73 | 7.67 | 0.71 | 2.45 | 1.12 | 7.78 | 0.93 | 0.96 | 4 | 1437.79 | 7.68 | 0.69 | 1.94 | 1.06 | 3.75 | 1.01 | 1.18 | 5 | 1890.97 | 8.40 | 0.56 | 2.50 | 1.02 | 4.23 | 0.79 | 0.92 | 6 | 710.14 | 3.92 | 0.71 | 1.51 | 1.18 | 4.59 | 1.04 | 1.06 | 7 | 391.09 | 2.27 | 0.80 | 0.40 | 1.22 | 2.95 | 1.28 | 1.43 | 8 | 170.31 | 1.52 | 0.85 | 0.22 | 1.24 | 3.17 | 1.48 | 1.65 |
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