Behaviors of High Explosive near the Critical Conditions for Shock Initiation of Detonation |
| Journal |
Materials Science Forum (Volume 566) |
| Volume |
Explosion, Shock Wave and Hypervelocity Phenomena |
| Edited by |
S. Itoh and K. Hokamoto |
| Pages |
15-22 |
| DOI |
10.4028/www.scientific.net/MSF.566.15 |
| Online since |
November, 2007 |
| Authors |
Shiro Kubota,
Yuji Ogata,
Yuji Wada,
Tei Saburi,
Kunihito Nagayama
|
| Keywords |
Gap Test, High Speed Photography, PVDF Gauge, Shock to Detonation Transition |
| Abstract |
The behaviors of the high explosive near the critical conditions for shock initiation of
detonation are investigated by high speed photography and pressure measurements in gap tests. The
sample is RDX base explosive, and the inner diameter of donor and acceptor charges is 26 mm. Gap
material is PMMA. Near the critical condition, the results under the following conditions have been
discussed. 1) Shock to detonation transition (SDT) take place in acceptor, 2) The SDT does not occur,
but the reaction wave affects the leading shock front in acceptor, and 3) The gap length in which the
effect of the reaction wave to shock front almost disappears. These results are very useful to construct
the initiation model for solid explosive. |
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