Open Access
Table 2
Damage factor of BFRC under cyclic loading and unloading
| Cycle | Confining pressure /MPa | ||||
|---|---|---|---|---|---|
| 5 | 10 | 15 | 20 | 30 | |
| 1 | 0.019 45 | 0.012 11 | 0.032 83 | 0.030 63 | 0.039 93 |
| 2 | 0.094 16 | 0.032 59 | 0.066 17 | 0.064 45 | 0.080 49 |
| 3 | 0.222 75 | 0.067 85 | 0.105 08 | 0.103 96 | 0.121 89 |
| 4 | 0.325 28 | 0.128 84 | 0.148 03 | 0.172 37 | 0.168 77 |
| 5 | 0.393 16 | 0.211 58 | 0.200 19 | 0.252 35 | 0.220 68 |
| 6 | 0.439 3 | 0.279 3 | 0.250 45 | 0.327 71 | 0.277 38 |
| 7 | 0.468 71 | 0.331 83 | 0.298 3 | 0.401 18 | 0.336 75 |
| 8 | 0.496 35 | 0.367 68 | 0.345 8 | 0.469 72 | 0.401 17 |
| 9 | 0.522 61 | 0.397 48 | 0.392 74 | 0.525 32 | 0.454 78 |
| 10 | — | 0.421 2 | 0.438 46 | 0.579 21 | 0.507 07 |
| 11 | — | 0.445 31 | 0.481 93 | 0.631 97 | 0.557 45 |
| 12 | — | 0.467 97 | 0.524 16 | — | 0.606 75 |
| 13 | — | — | 0.564 29 | — | — |
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