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<p>In this paper, the influence of the target plate thickness, constraint conditions and filling medium on the cutting performance of the linear shaped charges is studied. Firstly, an explosion cutting experiment was conducted on a 6061-T6 aluminum alloy target plate using QV45 lead linear shaped charges, and the cutting performance of the linear shaped charges and the optimal stand-off distance 2.3&#xa0;mm were obtained. Subsequently, a numerical simulation model was established and the material parameters of the simulation model were calibrated using experimental results. Finally, the effects of target plate thickness, constraint conditions, and filling medium on the cutting performance of QV45 linear shaped charges were analyzed through numerical simulations. The results show that all three will have obvious influence on the penetration of the target plate. At a stand-off distance of 0&#xa0;mm, the maximum thickness of the target plate that can be cut is 6.8&#xa0;mm. When the limit cutting thickness corresponding to different stand-off distances is exceeded, the thicker the target plate, the lower the penetration depth of the linear shaped charges. Reduced constraints also degrade the cutting performance of linear shaped charges. For a 10&#xa0;mm thick target plate cut with QV45 linear shaped charge, when the bottom normal of the target plate is constrained, the maximum penetration depth reaches 7.63&#xa0;mm; when the target plate is fully constrained on both sides of the surface, the penetration depth is 7.23&#xa0;mm; when the target plate is fully constrained on one side of the surface, the penetration depth decreases to 7.19&#xa0;mm; when the target plate is not constrained, the minimum penetration depth is only 6.93&#xa0;mm. The study also found that when the stand-off distance space is completely filled with lubricant, the penetration depth decreases by approximately 40.4%; when the stand-off distance space is completely filled with water, the penetration depth decreases by approximately 32.6%. The results of this paper can provide guidance for the application of linear shaped charges in specific configurations.</p>

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The influence of target plate factors on the cutting performance of linear shaped charges

  • 期刊论文

  • 发表日期：

    2025年11月12日

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  • Zheng Zhao,
  • Zhaowei Wu,
  • Hongwei He,
  • Rongqi Wu

摘要

In this paper, the influence of the target plate thickness, constraint conditions and filling medium on the cutting performance of the linear shaped charges is studied. Firstly, an explosion cutting experiment was conducted on a 6061-T6 aluminum alloy target plate using QV45 lead linear shaped charges, and the cutting performance of the linear shaped charges and the optimal stand-off distance 2.3 mm were obtained. Subsequently, a numerical simulation model was established and the material parameters of the simulation model were calibrated using experimental results. Finally, the effects of target plate thickness, constraint conditions, and filling medium on the cutting performance of QV45 linear shaped charges were analyzed through numerical simulations. The results show that all three will have obvious influence on the penetration of the target plate. At a stand-off distance of 0 mm, the maximum thickness of the target plate that can be cut is 6.8 mm. When the limit cutting thickness corresponding to different stand-off distances is exceeded, the thicker the target plate, the lower the penetration depth of the linear shaped charges. Reduced constraints also degrade the cutting performance of linear shaped charges. For a 10 mm thick target plate cut with QV45 linear shaped charge, when the bottom normal of the target plate is constrained, the maximum penetration depth reaches 7.63 mm; when the target plate is fully constrained on both sides of the surface, the penetration depth is 7.23 mm; when the target plate is fully constrained on one side of the surface, the penetration depth decreases to 7.19 mm; when the target plate is not constrained, the minimum penetration depth is only 6.93 mm. The study also found that when the stand-off distance space is completely filled with lubricant, the penetration depth decreases by approximately 40.4%; when the stand-off distance space is completely filled with water, the penetration depth decreases by approximately 32.6%. The results of this paper can provide guidance for the application of linear shaped charges in specific configurations.