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A Complete Detonator, Booster, and Main Charge Study of LX‐07/PBX 9502
Author(s) -
Souers P. Clark,
Druce Robert L.,
Roeske Franklin,
Vitello Peter,
May Chadd
Publication year - 2011
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.201000074
Subject(s) - booster (rocketry) , detonator , breakout , explosive material , curvature , projectile , materials science , mechanics , nuclear engineering , physics , aerospace engineering , engineering , mathematics , geometry , chemistry , metallurgy , organic chemistry , finance , economics
A complete study of an exploding bridgewire detonator (EBW), an LX‐07 hemispherical booster and a PBX 9502 outer shell are described. Breakout times from all three are listed in terms of first impact on the booster, i.e., code times. Lucite windows are also used to obtain particle velocities at the edges of each explosive, and these are converted into explosive pressures. The key to modeling is the use of the profile of the aluminum detonator can as it impacts the booster, i.e., we need to know the curvature of the end of the booster can. Modeling even with coarse zoning shows that (i) using reactive flow in the booster is better than programmed burn, (ii) creating the flyer curvature helps, and (iii) creating the time differences of flyer impact helps even more.