Effect of Explosive Reactive Armour Cover Plate on Interaction of ERA and Explosively Formed Projectile

Rasheed, Muhammad Farrukh; Wan, Cheng; Raza, Ali

doi:10.1155/2019/6093621

Cited by 5 publications

(2 citation statements)

References 5 publications

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“…The developed code enables the optimization of explosive reactive armors. Rasheed et al (2019), investigated the effects of adding a protective layer in front of an ERA sandwich. The results showed that there is a direct relation between the thickness of the protective layer and the reduction in penetration depth.…”

Section: Advances In Targetmentioning

confidence: 99%

A practical review study on shaped charge in the last two decades (2000–2020)

Mehmannavaz

Ramezani

Nabakhteh

et al. 2021

International Journal of Protective Structures

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Shaped charges are devices used for cutting or penetrating different aerial, on land, and underwater targets, based on the concentration of the explosion energy to the liner. The purpose of this study is to present a practical review of the studies related to shaped charges in the last twenty years (2000–2020). In this regard, these studies have been reviewed in two different categories for ordinary and advanced shaped charges. In the case of ordinary shaped charges, different aspects including shaped charges against different targets, different types of shaped charges (such as linear shaped charge and explosively formed penetrators), and theoretical advancements are presented. On the other hand, the new kinds of shaped charges developed for a specific purpose are introduced in the case of advanced shaped charges. The survey of the literature indicates that different concepts such as cut-off velocity and theoretical applicability of hydrodynamics theory in shaped charge penetration still Requires effort. Also, few studies have been focused on new shaped charges, such as hyper-velocity shaped charges, annular and dual-mode ones; and the field is still open for further progress. Besides, some of these new shaped-charges, such as double-layer shaped charges, are not realistic enough to be produced for practical purposes or the market.

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Section: Advances In Targetmentioning

confidence: 99%

A practical review study on shaped charge in the last two decades (2000–2020)

Mehmannavaz

Ramezani

Nabakhteh

et al. 2021

International Journal of Protective Structures

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“…An explosively formed projectile (EFP) is a projectile with a high speed and ight stability that is formed by an explosively driven liner. Developments of composite, depleteduranium, and other new types of armor allow for constant enhancements in armor protection ability [1]. Traditional OFHC copper EFP is insu cient at causing fatal damage to armored targets.…”

Section: Introductionmentioning

confidence: 99%

Research on Numerical Simulation of Tantalum Explosively Formed Projectile Forming Driven by Detonation

Wang

et al. 2022

Shock and Vibration

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In order to study the formation characteristics of tantalum explosively formed projectile (EFP), based on LS-DYNA finite-element software, this article analyzes the influence of mesh size on tantalum EFP forming, compares the accuracy of JC constitutive parameters in different literature on the characterization of tantalum EFP forming, calculates the effective action time of detonation that drives EFP formation, and carries out experimental verification. The results show that the EFP forming velocity was less sensitive to grid size; however, the EFP shape was highly sensitive to grid size, among which the liner had the greatest influence. Besides, for the same density and different constitutive parameters, the velocity of the stabilized EFP was the same, but the change trend of velocity was different, which led to the difference in morphology. The verification test showed that a selection of appropriate JC constitutive parameters could simulate tantalum EFP forming. Finally, the effect of detonation products on EFP forming was reflected mainly in the axial acceleration and radial contraction of the tail skirt. The influence of explosives and detonation products on EFP forming can be ignored 80 μs after the charge detonates. In this work, the numerical simulation method of tantalum EFP forming was studied, which provides guidance for the design and engineering application of tantalum EFP.

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