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Initiation Criteria of High Explosives at different projectile or jet densities
Author(s) -
Held Manfred
Publication year - 1996
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.19960210505
Subject(s) - shaped charge , projectile , explosive material , charge (physics) , jet (fluid) , physics , spheres , tungsten , atomic physics , nuclear physics , materials science , particle physics , mechanics , chemistry , quantum mechanics , metallurgy , astronomy , organic chemistry
Test results of initiation threshold values with tungsten spheres of different diameters d and Lexan spheres of 76 mm diameter can be very well described by the u 2 d‐Held‐criterion where u is the cratering velocity or \documentclass{article}\pagestyle{empty}\begin{document}$ {\rm v/(1 + }\sqrt {\varrho _{\rm t} /\varrho _{\rm p})} $\end{document} . For covered Composition B the initiation threshold value is 23 mm 3 /μs 2 . This value fits also shaped charge tests where the high explosive charge is also in a covered arrangement.