Numerical Simulation of the Formation of a Shaped-Charge Jet from a Rotating Shaped Charge
S. S. Rassokha
Bauman Moscow State Technical University, Moscow, Russia
Keywords: shaped charge, shaped-charge jet, rotation, centrifugal fracture, numerical simulation
Abstract
This paper presents the results of numerical simulation of the operation of rotating shaped charges. The results show the that the velocity of radial expansion of high-speed hollow cylindrical projectiles simulating shaped-charge jet elements has no influence on their penetration depth. Numerical analysis was performed to study the stretching of a rotating stretchable metal cylinder (jet) with a harmonic lateral surface profile. The influence of various parameters, including the angular velocity of the jet, on its continuity in the axial and radial directions was evaluated. A relation for estimating the ultimate elongation coefficient of a rotating shaped-charge jet is proposed. Comparison of calculation results with experimental data shows that they are in satisfactory agreement with each other.
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