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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