| Autor: |
Craig M. Tarver, Steven K. Chidester, Mark Elert, Michael D. Furnish, Ricky Chau, Neil Holmes, Jeffrey Nguyen |
| Rok vydání: |
2008 |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings. |
| ISSN: |
0094-243X |
| Popis: |
Previously established Ignition and Growth reactive flow models for the detonating triaminotrinitrobenzene (TATB) based plastic bonded explosives LX‐17 and PBX 9502 are applied to recent experimental detonation propagation/failure experiments using unconfined cones, confined arcs, and unconfined arcs. The conical experiments are initially overdriven by the convergent geometry and then fail to detonate at smaller diameters than do unconfined cylindrical charges when the radial rarefaction wave lowers the shock pressure and temperature and thus decreases the chemical energy release rate. Unconfined TATB arcs detonate more slowly than cylindrical charges on the inner surface and exhibit large phase velocities on the outer surface. Confinement reduces but does not eliminate these effects. The Ignition and Growth model calculations based on parameters normalized to a great deal of one‐, two‐ and three‐dimensional detonation propagation data reproduce these features and agree closely with experimental detonation velocity and arrival time data. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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