Research Article
Numerical Study of Separation Characteristics of Piston-Type Explosive Bolt
Table 4
Separation characteristics of explosive bolts under different charge amounts.
| | Charge amount (mg) | Separation time (μs) | Peak velocity of piston (m/s) | Peak velocity of screw (m/s) | Velocity of screw from the test (m/s) | Difference (%) |
| | 310 | No separation | | 354 | No separation | | 398 | 111 | 95.2 | 97.2 | No test | — | | 442 | 83 | 100.0 | 100.6 | 96 | 4.8% | | 487 | 69 | 100.5 | 106.1 | 102 | 4.0% | | 531 | 64 | 101.3 | 110.6 | 116 | 4.7% | | 575 | 61 | 96.6 | 102.7 | 97 | 5.9% | | 619 | 59 | 94.3 | 92.7 | 87 | 6.6% | | 664 | 57 | 87.5 | 86.3 | No test | — | | 708 | 54 | 78.2 | 83.5 | No test | — |
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