Abstract
The safety performane of explosive is investigated by analyzing three responses for spigot test: initiation, ignition and fragmentation. In this paper, the numerical model of spigot test was developed with high sensitive explosive JO-9159 and low sensitive PBXC03. The Ignition and Growth reactive (I and G) model was used to describe initiated progress. The thermal-mechanical coupling method and Arrhenius equation were used to describe ignited temperature. The elements-apart method was used to describe fragmentation of explosive. The calculated critical drop velocity is between 25 m·s-1 and 28 m·s-1, which is agreement with experimental results, and interior temperature and fragmentation of explosive were gained.
Original language | English |
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Pages (from-to) | 748-753 |
Number of pages | 6 |
Journal | Hanneng Cailiao/Chinese Journal of Energetic Materials |
Volume | 20 |
Issue number | 6 |
DOIs | |
Publication status | Published - Dec 2012 |
Keywords
- Drop
- Explosion mechanics
- Explosive
- Fragment
- Numerical simulation