Chain damage effects of multi-spaced plates by reactive jet impact

Zheng, Yuanfeng; Su, Cheng-hai; Guo, Huan-guo; Yu, Qian; Wang, Haifu

doi:10.1016/j.dt.2020.02.008

Cited by 24 publications

(19 citation statements)

References 12 publications

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“…The inner layer is the active liner, which is a truncated cone with a uniform thickness of 2 mm. It is prepared by block machining and Al particles about 15–45 μm in size were deposited on the substrate by cold spraying to improve the activity of the liner material [ 14 ]. The inactive outer layer is 1 mm machined Cu.…”

Section: Penetration Experimentsmentioning

confidence: 99%

“…Because of the jet’s strong penetration ability, the penetration experiment used multi-layered targets consisting of a series of 160 mm × 160 mm steel-aluminum-aluminum plates [ 14 ]. The 15 mm thick 45# steel plate was used to interfere with the jet’s penetration and initiate the active part of the composite jet, and the two 3 mm thick Al-2024 aluminum plates were used to measure the aftereffects.…”

Section: Penetration Experimentsmentioning

confidence: 99%

“…The formability of active jets directly made of RSMs is generally poor due to the low density and poor strength of RSMs. These jets have much less penetration depth than traditional Cu jets although they have much stronger lateral effects on the targets [ 14 , 15 , 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

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The Penetration–Explosion Effects of Differently Distributed Inactive/Active Composite Shaped Charge Jets

et al. 2022

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An analysis of the penetration–explosion (PE) effects of four distributions of inactive/active composite jets shows that a well-designed inactive/active double-layer liner can promote composite jet damage. Penetration experiments were then carried out for shaped charge jets having a single inactive (Cu) liner or an inactive/active (Cu/Al) double-layer liner with variable liner height. The behaviors and firelight patterns of the different jets were captured by high-speed photography. The perforation, deformation area, and deflection were measured for each plate, showing that the Cu/Al jets have stronger PE effects. Numerical simulation shows that the tip of the composite jet generated from the full-height liner is only Cu, whereas for the other jet, from the double-layer liner, Cu is almost wrapped entirely by Al.

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Section: Penetration Experimentsmentioning

confidence: 99%

Section: Penetration Experimentsmentioning

confidence: 99%

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The Penetration–Explosion Effects of Differently Distributed Inactive/Active Composite Shaped Charge Jets

et al. 2022

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“…The present researches on reactive material jets involve jet formation [5], penetration capability [6], energy release characteristics [7], as well as the enhanced terminal effect [8,9]. Experimental and numerical methods, such as shock loading experiments by shaped charge [10], X-ray photographs investigation [5], and macroscopic modeling [11] are general methods applied to study the formation process and terminal effects of reactive material jets.…”

Section: Introductionmentioning

confidence: 99%

Study on the Formation of Reactive Material Shaped Charge Jet by Trans-Scale Discretization Method

Liu

et al. 2022

Crystals

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The formation process of reactive materials shaped charge is investigated by X-ray photographs and numerical simulation. In order to study the formation process, a trans-scale discretization method is proposed. A two-dimensional finite element model of shaped charge and reactive material liner is established and the jet formation process, granule size difference induced particle dispersion and granule distribution induced jet particle distribution are analyzed based on Autodyn-2D platform and Euler solver. The result shows that, under shock loading of shaped charge, the Al particle content decreases from the end to the tip of the jet, and increases as the particle size decreases. Besides, the quantity of Al particles at the bottom part of the liner has more prominent influence on the jet head density than that in the other parts, and the Al particle content in the high-speed section of jet shows inversely proportional relationship to the ratio of the particle quantity in the top area to that in the bottom area of liner.

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“…RMs are more stable under external impact and have greater strength than explosives, which allows them to be mechanically processed [5]. Therefore, RMs can be used in the arms industry, namely, in rocket artillery [6], in shaped charges [7], and as structural components of warheads [8,9]. However, the use of RMs is not limited to the arms industry.…”

Section: Introductionmentioning

confidence: 99%

Energetic Materials Based on W/PTFE/Al: Thermal and Shock-Wave Initiation of Exothermic Reactions

Saikov

Seropyan

Malakhov

et al. 2021

Metals

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The parameters of combustion synthesis and shock-wave initiation of reactive W/PTFE/Al compacts are investigated. Preliminary thermodynamic calculations showed the possibility of combustion of the W/PTFE/Al system at high adiabatic temperatures (up to 2776 °С) and a large proportion of condensed combustion products. The effect of the Al content (5, 10, 20, and 30 wt%) in the W/PTFE/Al system on the ignition and development of exothermic reactions was determined. Ignition temperatures and combustion rates were measured in argon, air, and rarefied air. A correlation between the gas medium, rate, and temperature of combustion was found. The shock initiation in W/PTFE/Al compacts with different Al content was examined. The extent of reaction in all compacts was studied by X-ray diffraction. The compositions with 10 and 20 wt% Al showed the highest completeness of synthesis after combustion and shock-wave initiation.

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Chain damage effects of multi-spaced plates by reactive jet impact

Cited by 24 publications

References 12 publications

The Penetration–Explosion Effects of Differently Distributed Inactive/Active Composite Shaped Charge Jets

The Penetration–Explosion Effects of Differently Distributed Inactive/Active Composite Shaped Charge Jets

Study on the Formation of Reactive Material Shaped Charge Jet by Trans-Scale Discretization Method

Energetic Materials Based on W/PTFE/Al: Thermal and Shock-Wave Initiation of Exothermic Reactions

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