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Influence of Liner Form and Explosive on the Velocity and Mechanical Action of a Shaped-Charge Jet

Voitenko Yuri, Sydorenko Yuri, Zakusylo Roman, Boyko Viktor, Artemiev Olexandr, Bugaiets Volodymyr, Zakusylo Daryna

Central European Journal of Energetic Materials

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2024

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Vol. 21, no. 3

320--337

EN

The results of modeling the operation of shaped charges with conical, biconical, and elliptical liners and various detonation initiation schemes are presented. A comparison of the modeling results with data from experimental studies conducted on charge models and with the results of modeling by other authors has been carried out. A dependence of the leading part velocity of the copper shaped-charge jet for copper liners with apex angles of 44-50° on the parameter ρD2 in the low detonation velocity (D) and explosive density (ρ) range, is proposed.

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On the Influence of the Liner Shape and Charge Detonation Scheme on the Kinetic Characteristics of Shaped Charge Jets and Explosively Formed Penetrators

Voitenko Yuri, Sydorenko Yuri, Zakusylo Roman, Goshovskii Sergii, Zaichenko Stefan, Boyko Viktor

Central European Journal of Energetic Materials

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2023

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Vol. 20, no. 4

417--441

EN

The results of modelling the functioning of shaped charges with different liners and different detonation excitation schemes are presented. The simulation results are compared with experimental data and modelling results by other authors. The shaped charge explosion process was simulated with the help of the authors’ program “Hephaestus” and the ANSYS/AUTODYN program. The results of determining the depth of penetration of cumulative jets into a barrier using the AV model (Allison and Vitali) are compared with experimental data. The dependence of the velocity of the leading part of the copper cumulative jet on the angle at the top of the conical liner is proposed. Attention was paid to the need to take into account the gradient of the properties of the liner material in the simulations.

3

Influence of the Striker Material on the Results of High-Speed Impact at a Barrier

Voitenko Yuri, Zakusylo Roman, Zaychenko Stefan

Central European Journal of Energetic Materials

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2021

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Vol. 18, no. 3

405--423

EN

In this work the influence of the characteristics of the material of the striker (cumulative jet or projectile), moving at speeds of 2-10 km/s, on the volume of the resulting crater in a metal target, has been studied. The dependence of the crater volume in an aluminum alloy target of Cu-Al, W-Cu-Pb-Al composites, and steel St45 for a PTFE-Cu composite, were investigated. The outer diameter and height of the shaped charges were 26 and 28, and 31 and 33 mm, respectively. The mass of the explosive (phlegmatized hexogen) in these charges was 10 and 18 g. A comparison was made between the ratios of the kinetic energy of the striker to the volume of the crater formed for the composites PTFE-Al, PTFE-Cu, Cu-Al, Ni-Al, W-Cu-Pb, and porous materials Cu and Al. It was demonstrated that the chemical interaction of the components of the porous Cu-Al and Ni-Al composites during penetration into the barrier is possible at an impact velocity of at least 2-3 km/s and a porosity of at least 30%.