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KMID : 0380319750150000079
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Journal of Korean Research Institute for Better Living
1975 Volume.15 No. 0 p.79 ~ p.91
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Theoretical study on the jet formation by cavity effect
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Abstract
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Using the hydrodynamic theory of jet formation for the cavity effect, one can predict a number of characteristics of the jet and it has been experimentally confirmed.
However, the hydrodynamic theory of jet formation cannot illustrate sufficiently the shaped charge head model.
This investigation has been applied the fnndamental principle of detonation theory in interpreting the results of the studies on the cavity effect.
Using this approach the following formula for velocity constituent of jet has been obtaimed.
v=√(K.Q cosθ)/p×√(l^2-x^2)/l^2
where θ is the angle of liner base
p is the density of high explosive
Q is the detonation pressure of explosive
l is the length between apex of liner cone and base
x is the disatance which detonation wave front has made progress from apex of liner cone.
K is the constant value by species of the explosive
This epuation conld be illuetrated elongation of the jet which velocity constituent decrease with the time continuosly.
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