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Determination of the crater radius as a function of time of a shaped charge jet that penetrates water
Author(s) -
Held Manfred,
Huang N. S.,
Jiang D.,
Chang C. C.
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.19960210203
Subject(s) - impact crater , radius , jet (fluid) , shaped charge , mechanics , bernoulli's principle , water jet , charge (physics) , geology , physics , thermodynamics , chemistry , computer security , organic chemistry , quantum mechanics , astronomy , computer science , nozzle , explosive material
The new technique of measuring radial expansion of a crater as a function of time on a shaped charge jet that penetrates water is explained in this paper. Radial expansion of the crater in the frame of experimentation can, in this case, be easily described with a modified Bernoulli equation under the condition that target strength is weak, the initial radial crater velocity is equal to the axial crater velocity and that the pressure p diminishes from the initial impact pressure p 0 , with the ratio of the area a to the initial area a 0 of the impacting jet.