Structural design of the fluted shaped charge liner using multi-section optimization method

Sun, Shengjie; Jiang, Jianliang; Wang, Shuyou; Men, Jianbing; Mei, Li

doi:10.1016/j.dt.2023.01.008

Cited by 3 publications

(3 citation statements)

References 16 publications

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“…Analyzing the perforation areas of three sets of aluminum target plates (1, 2, 3; 4, 5, 6; 7, 8, 9), where each set of aluminum target plates represents different numbers of grooves (4,8,12).…”

Section: Analysis Of Post-penetration Damage To Aluminum Targets Due ...mentioning

confidence: 99%

“…Subsequently, addressing inherent design aws, various studies have adopted combined metallic liner con gurations, including column-cone designs [8] investigated by Wang Pei et al, spherical-cone con gurations [9] researched by Chen Xing et al, double-layer metallic liners [10] designed by Zhao Xin et al, and cylindrical and hemispherical combined con gurations [11] studied by Wang Qinghua et al, all leveraging different liner shapes to enhance jet penetration e ciency. In recent years, Shengjie Sun, Jianwei Jiang, et al, utilizing Smoothed Particle Hydrodynamics (SPH) simulations, optimized the inner surface design of novel liners, discovering that this structure can reduce jet fragmentation and improve overall jet stability [12] . Cheng Wang, Jianxu Ding, et al, employed methods such as adding liners to enhance jet breakthrough capabilities and improve jet expansion bene ts [13] .…”

Section: Introductionmentioning

confidence: 99%

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Analysis of the Impact of Inclined Grooves on the Interior Surface of Shaped Charge Liners on the Post-Penetration Damage Effects of Fragmentation Clouds

Zhou,

Li,

Zhou

2024

Preprint

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Due to the fact that traditional oxygen-free copper liners rely on the Monroe effect to generate a metal jet for penetrating target armor, resulting in the formation of a fragment cloud and residual jet particles post-armor penetration, which inflict damage on the target, there is a need to enhance the damaging effect of the metal jet after penetrating armor. In this regard, an internally inclined groove liner is designed based on the traditional oxygen-free copper liner. By varying the groove depth and quantity, the post-penetration effects are investigated using the Smoothed Particle Hydrodynamics (SPH) algorithm. The results indicate that increasing groove depth affects the maximum coalescence velocity of the fragment cloud. Furthermore, the number of inclined grooves is positively correlated with the maximum coalescence velocity of the fragment cloud and has a certain impact on the maximum fragment divergence angle. A complex relationship is observed between groove depth and average single-hole area, with variations at different depths, potentially influencing the area of small expansion holes. Differences are found in the average total single-hole area and maximum expansion hole area among different groove groups, notably in the widespread distribution of single-hole areas within the 8-groove group, potentially leading to greater unevenness in expansion hole areas. Numerical simulations and experimental results demonstrate that the liner with inclined grooves generates larger perforation areas compared to the intact liner, indicating enhanced lateral killing effects. The close agreement between experimental and numerical simulations suggests that the design of inclined grooves effectively enhances the post-damage performance of the liner.

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Section: Analysis Of Post-penetration Damage To Aluminum Targets Due ...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of the Impact of Inclined Grooves on the Interior Surface of Shaped Charge Liners on the Post-Penetration Damage Effects of Fragmentation Clouds

Zhou,

Li,

Zhou

2024

Preprint

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“…10.3389/fmats.2024.1308290 spherical (for making wide holes), or funnel-shaped (for creating pipes). Many different materials have been tested for liners (Xu et al, 2019;Sun et al, 2023). However, copper (Cu) was the first material to be used due to its high density and good ductility deformation (W. B.…”

mentioning

confidence: 99%

Effect of tungsten contents on the jet penetration performance of shaped charge liner based copper-tungsten composites

Tuan,

Van Toan,

Long

et al. 2024

Front. Mater.

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Herein, we investigated the effect of W content on the jet penetration performance of W-Cu shaped charge liners by using both simulation and experimental methods. The W-Cu composite liners were prepared directly by using spark plasma sintering (SPS) technique. Microstructural observations showed that W particles were uniformly dispersed within the Cu matrix. The relative density of W-Cu composites decreased slightly from 99.2% to 98.8% with an increase in the W content. The hardness of the W-Cu composite liner increased as increasing W content and reached the highest value of 209.2 HV for the composite reinforced by 60 wt.% W. Besides, the penetration depth increased and reached the maximum value of 80 mm for the composite liner containing 50 wt.% W which is improved by about 11% compared to pure Cu liner. According to simulation and experiment results, the penetration depth of the W-Cu composite liners exhibits a nearly identical trend. W-Cu composite liner containing 50 wt.% W remains the best performance compared to other composites. However, the experimental results are lower compared to the simulation results. This could be because the simulation procedure did not completely account for the actual test conditions.

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Multi-objective design optimization of loading flange plate of megawatt wind turbine based on response surface method

Huang,

Yan,

et al. 2023

2023 4th International Conference on Mechatronics Technology and Intelligent Manufacturing (ICMTIM)

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Structural design of the fluted shaped charge liner using multi-section optimization method

Cited by 3 publications

References 16 publications

Analysis of the Impact of Inclined Grooves on the Interior Surface of Shaped Charge Liners on the Post-Penetration Damage Effects of Fragmentation Clouds

Analysis of the Impact of Inclined Grooves on the Interior Surface of Shaped Charge Liners on the Post-Penetration Damage Effects of Fragmentation Clouds

Effect of tungsten contents on the jet penetration performance of shaped charge liner based copper-tungsten composites

Multi-objective design optimization of loading flange plate of megawatt wind turbine based on response surface method

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