Density Effect of PTFE-Copper Powder Metallurgy Liner Material on the Perforation Performance of Shaped Charge Jets

Xu, Yong Jie; Wang, Z. J.; Wu, Guoqin; Yin, Jianping; Dong, F. D.; Jin, Ying

doi:10.1007/s11223-019-00108-2

Cited by 6 publications

(4 citation statements)

References 5 publications

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“…Although the mechanical properties of the sample obtained by pressing first and then sintering are not as good as the former, the penetration performance of the jet is greatly improved, and the reaming effect is not much different from the former. Compared with Reference [19], our study considers the influence of the preparation process. In the existing literature, the preparation process of PTFE/Cu composites generally chooses cold-pressing sintering.…”

Section: Effect Of Sintering Sequence On Jet Penetration Characteristicsmentioning

confidence: 99%

Study on the Effect of PTFE/Cu Composite Material Preparation Process on Penetration Performance

Yi,

Hao,

Tang

et al. 2023

Polymers

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The jet formed by the traditional metal liner has a slender shape. The diameter of the jet head is consistent with that of the tail, and the ductility is good. When it is used to penetrate the target, it has a good damage effect. The low-density jet formed by the PTFE/Cu liner, according to the different preparation processes and densities, has different degrees of radial expansion. This phenomenon may lead to the expansion of the jet head during the penetration process, resulting in a damage effect, which is different from the previous jet on the target. In this paper, the numerical simulation of PTFE/Cu liners with different preparation processes penetrating steel targets is carried out, and the effects of different preparation processes and liner density on the penetration characteristics of jets penetrating steel targets are compared and analyzed. The PTFE/Cu shaped charge liner was processed according to different preparation processes, and the jet penetration steel target experiment was carried out, so as to verify and analyze the numerical simulation results.

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Section: Effect Of Sintering Sequence On Jet Penetration Characteristicsmentioning

confidence: 99%

Study on the Effect of PTFE/Cu Composite Material Preparation Process on Penetration Performance

Yi,

Hao,

Tang

et al. 2023

Polymers

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“…As an efficient means of breaking armor, the shaped charge has been widely used in military and oil exploration fields. In the past few decades, researchers have carried out a number of studies on different liner materials, such as simple metals, alloy materials and even polymers [1][2][3][4][5]. With the development of materials science, reactive materials [6][7][8] have also been used for armor-piercing projectile and shaped charge liners due to their significant energy-releasing effects.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Zr‐Based Amorphous Alloy as a Shaped Charge Liner

Shi

Huang

2022

Propellants Explo Pyrotec

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This study aimed to investigate the mechanical properties of Zr-based amorphous alloy at high strain rates and its use as a shaped charge liner. A split Hopkinson pressure bar (SHPB) was used to carry out dynamic mechanical performance tests, and a scanning electron microscope (SEM) was used to observe the fracture morphology of the test piece. The X-ray test of the jet formation and the static penetration test of the Zr-based amorphous alloy jet were performed. It was found that the amorphous alloy material exhibits typical brittle fracture characteristics under high strain-rate compression. As the strain rate increases, molten droplet-like structures appear in the frac-ture morphology, and the melting area is proportional to the strain rate. The Zr-based amorphous alloy liner forms a non-cohesive jet driven by explosive explosion. The actual projection angle of the liner is slightly larger than the theoretical value of Taylor's projection angle because of the unique mechanical properties and fracture mechanism, while the collapse angle is slightly smaller. Compared with copper jet penetrating concrete, the aperture of Zr-based amorphous alloy jet is increased by 58 % and the caving volume is increased by 32 times. The results provide reference for the application of Zr-based amorphous alloy in the field of shaped charge liner.

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“…Cu-PTFE (polytetrafluoroethylene) composites serve as an important benchmark for the current development of lowdensity materials, which can be used in military and civilian fields as reactive structural materials for target damage or barrier breaking [1,2]. Although the damage performance of low-density materials has previously been investigated [3,4], little importance has been placed on the compressive properties of the material prior to experiments.…”

Section: Introductionmentioning

confidence: 99%

Effect of the Fabrication Technique on Compressive Properties of Cu‐PTFE Composites

Tang

Wang

Yin

et al. 2021

Advances in Materials Science and Engineering

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In this paper, the effect of manufacturing methods on the compressive properties of Cu-PTFE (polytetrafluoroethylene) composites was investigated. Two types of specimens were prepared through different manufacturing methods (extrusion forming and hot-press sintering). The specimens were tested using an electrohydraulic press and split-Hopkinson pressure bars for quasi-static loading and dynamic impact, respectively. The specific fracture processes were recorded by using a high-speed camera, and the failure microstructures of the specimens were analysed by SEM. According to the results, hot-press sintered specimens have consistently higher strength and toughness under dynamic compression than the extruded specimens, while the mechanical properties of hot-press sintered specimens are inferior to those of extruded specimens under quasi-static compression. The failure of extruded specimens is primarily caused by the elastic mismatch between the PTFE matrix and Cu particles, as well as the polymerisation of plastic pores, which leads to particle pullout. However, the cracks in the hot-press sintered specimens were caused by the shear deformation and interface sliding of the PTFE matrix, which led to matrix tearing.

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Density Effect of PTFE-Copper Powder Metallurgy Liner Material on the Perforation Performance of Shaped Charge Jets

Cited by 6 publications

References 5 publications

Study on the Effect of PTFE/Cu Composite Material Preparation Process on Penetration Performance

Study on the Effect of PTFE/Cu Composite Material Preparation Process on Penetration Performance

Experimental Investigation of Zr‐Based Amorphous Alloy as a Shaped Charge Liner

Effect of the Fabrication Technique on Compressive Properties of Cu‐PTFE Composites

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