Nonelectrical Tube Explosive Transfer System
| Autor: | Ian H. P. Do, Lien C. Yang |
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| Rok vydání: | 2000 |
| Předmět: | |
| Zdroj: | AIAA Journal. 38:2260-2267 |
| ISSN: | 1533-385X 0001-1452 |
| DOI: | 10.2514/2.917 |
| Popis: | Analyses of internal ballistics and criteria for reaction propagation in nonelectrical tube explosive lines were performed based on explosive loading density, average particle size, and typical geometry using an approach based on heat transfer and decomposition kinetics in the explosive particles in quasi steady state. The results indicate the existence of a critical or maximum average explosive particle size for a given explosive loading density beyond which sustained propagation may cease. Large variations usually exist in the explosive loading density, so that fine particle sizes below 20 μm are preferable. Fine particle size also may increase the adhesion to the inner tube wall for mitigation of powder migration problems. Computer simulations of detonating end tip to nondetonating end tip transfer were performed using the CTH hydrodynamic code developed by the Sandia National Laboratories. Preliminary results indicate that the hot gas from the detonating end tip is more effective for initiating pyrotechnics in the nondetonating end tip and that a larger gap between the end tips is essential for the success of hot gas initiation |
| Databáze: | OpenAIRE |
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