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| Effects of Shock Insults on Explosive Charges Shock Wave Sensitivity |
| Received:March 06, 2019 Revised:July 04, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2019.09.001 |
| KeyWord:shock damage characteristic of damage shock wave sensitivity |
| Author | Institution |
| JIN Peng-gang |
Xi¢an Modern Chemistry Research Institute, Xi¢an , China |
| JIANG Xi-bo |
Xi¢an Modern Chemistry Research Institute, Xi¢an , China |
| LI Hong-bin |
Xi¢an Modern Chemistry Research Institute, Xi¢an , China |
| GAO Zan |
Xi¢an Modern Chemistry Research Institute, Xi¢an , China |
| WANG Xiao-feng |
Xi¢an Modern Chemistry Research Institute, Xi¢an , China |
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| Abstract: |
| Objective To research the influencing rule of internal explosive damage of shock load on shock wave sensitivity with time. Methods For damage status changing over time of two typical cases, the shock wave was used to simulate loading to inspect the damage. When the damage recovery time was very long, the damaged sample was kept for seven days before it was used to research its damage status on the shock wave sensitivity; when the recovery time was very short, the actual situation of impact between several layers of target plates were simulated by controlling the time internal between shock damage test and shock wave sensitivity. In usual, two kinds of HMX based explosives were used to determine the thickness of critical partition and the damage condition of design. Then, the impact wave sensibility was tested with two kinds of recovery duration to study the influences of damage status on impact wave sensibility of explosives. Results After being kept for 7 days in the aforementioned damage conditions, the shock wave sensitivity of explosive charging decreased apparently. While the shock wave sensitivity increased significantly after being tested in conditions similar to multi-layer target plate. Conclusion The different damage coalescence times have the different variation trend of shock wave sensitivity. The shock wave sensitivity of damaged explosive charge is time dependent. |
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