TITLE

High speed observation of fragment impact initiation of nitromethane charges

AUTHOR(S)
Cook, M. D.; Haskins, P. J.; Briggs, R. I.; Cheese, P.; Stennett, C.; Fellows, J.
PUB. DATE
April 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 505 Issue 1, p793
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Ultra high-speed digital photography has been used to record the onset and build-up of reaction in nitromethane charges that have been impacted by steel fragments. The nitromethane charges were housed in PMMA cylinders and back-lit using conventional flash bulbs. Flat plates of aluminium were glued to one end of the cylinder and PMMA plates to the other. The completed charge was positioned to allow normal impact of the projectiles through the aluminium barrier plate. The events were filmed using an Imacon 468, ultra high-speed digital image system, capable of framing at up to 100 million pictures per second. Using this system it was possible to record detailed photographic information concerning the onset and growth of reaction due to shock initiation of the nitromethane charges. The results obtained to date are consistent with the established concepts for initiation of homogenous and heterogeneous materials.
ACCESSION #
5985399

 

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