Penetration of long strikers under hydrodynamic conditions with allowance for the material compressibility

Федоров, С. В.; Bayanova, Ya. M.

doi:10.1134/s1063784211090088

Cited by 7 publications

(1 citation statement)

References 1 publication

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“…us, it presents a serious challenge to the traditional tandem shaped charge warhead [1,2]. In this context, how to improve the damage performance of armored target caused by tandem shaped charge warheads has become one of the focuses and hotspots in the field of armament science and technology at home and abroad [3][4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Tandem Shaped Charge Penetrating Armored Target under Explosive Loading

Yin

Duan

Han

et al. 2021

Shock and Vibration

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Tandem shaped charge is one of the hotspots in the research of antiarmor ammunition at present, but because of the shortcoming that the front-stage jet penetrates and detonates ERA (Explosive Reactive Armor), then it will affect the rear-stage jet to penetrate the main armor. Our research team proposes that the front charge of the tandem shaped charge can be designed as a low-density material charge liner so that the front-stage low-density jet can penetrate a small hole in the reactive armor without detonating. The rear-stage main charge forms a main jet through the small hole to penetrate the main armor. In this article, the damage of tandem shaped charge to armored target is studied when copper and new modified PTFE (polytetrafluoroethylene) materials are used as front-stage charge liner, and the numerical simulation results are verified by experiments. The numerical results show that the Cu (copper) jet formed by tandem shaped charge of double-copper material has strong impact performance. The interlayer explosive in reactive armor is detonated in the process of penetrating reaction armor, which weakens the penetration ability of the main rear-jet. However, the interlayer explosive in the reactive armor is not detonated during the penetration of the double-material tandem shaped charge. The front-stage modified PTFE jet and the rear-stage main jet are not affected by the explosion loading before penetrating the main armor. The experimental results show that the double-material tandem shaped charge overcomes the shortcoming of the influence of the front-stage explosion, and the penetration depth of the main armor reaches 703 mm, which is 14.3% higher than the penetration ability of the double-copper tandem shaped charge, which is basically consistent with the numerical simulation results. It provides a reference for improving the damage ability of tandem shaped charge to armored target.

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Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Tandem Shaped Charge Penetrating Armored Target under Explosive Loading

Yin

Duan

Han

et al. 2021

Shock and Vibration

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An approximate compressible fluid model of long-rod hypervelocity penetration

Tang

Chen

Deng

et al. 2021

International Journal of Impact Engineering

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Reaction characteristics of polymer expansive jet impact on explosive reactive armour

Wang

Yin

et al. 2020

E-Polymers

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AbstractIn this study, a new damage mode for the explosive reactive armour (ERA) of a shaped charge jet was proposed. The response characteristics of polytetrafluoroethylene (PTFE) and polyamide (PA) polymer jet impact on the ERA were analysed. The expansion degree and the diameter of the PTFE jet are larger than those of the PA jet, but the compactness of the PTFE jet head is lower than that of the PA jet, resulting in different impact pressures of the different polymer expansive jets on the target. The PTFE jet achieved the penetration without initiation of the ERA at different standoffs, while the PA jet directly detonated the sandwich charge when impacting the ERA vertically and failed to penetrate the front plate when impacting the ERA at 68°. With the increase of standoff, the reaction degree of the PTFE jet to the ERA decreased gradually, and the aperture of the front plate did not change.

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Penetration of long strikers under hydrodynamic conditions with allowance for the material compressibility

Cited by 7 publications

References 1 publication

Numerical Simulation of Tandem Shaped Charge Penetrating Armored Target under Explosive Loading

Numerical Simulation of Tandem Shaped Charge Penetrating Armored Target under Explosive Loading

An approximate compressible fluid model of long-rod hypervelocity penetration

Reaction characteristics of polymer expansive jet impact on explosive reactive armour

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