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<p>This paper investigates the penetration behavior of JPC/JET into soil-concrete composite media. Firstly, a damage element penetration mode considering interface effect differences was proposed. Secondly, the effect of concrete strength and cover layer thickness on the penetration process was studied. Finally, penetration experiments were conducted under different cover layer thicknesses. The research results indicate that the error between simulation and experimental results is less than 9.9%, which can better describe the penetration process. While concrete strength significantly affects the radial aperture of JPC/JET penetration, its impact on axial penetration depth is minimal. The presence of a soil cover layer significantly improves the radial expansion characteristics of JPC and JET on concrete target plates. As the thickness of the overlying soil layer increases, the penetration depth of JPC and JET shows a linear decreasing trend. JET reduces the radial aperture of concrete first and then increases, while JPC reduces the radial aperture of concrete in a stepwise manner. The findings provide a theoretical basis for the design of penetrating weapons in complex battlefield environments.</p>

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Study on the penetration of multi-mode warheads into soil-concrete composite media with different soil cover thicknesses

  • 期刊论文

  • 发表日期：

    2025年9月2日

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  • Wei Cheng,
  • Xiao-Ming Wang,
  • Feng-Ying Long,
  • Peng Xu,
  • Wen-Jin Yao,
  • Jun-Bao Li,
  • Wei-Bing Li

摘要

This paper investigates the penetration behavior of JPC/JET into soil-concrete composite media. Firstly, a damage element penetration mode considering interface effect differences was proposed. Secondly, the effect of concrete strength and cover layer thickness on the penetration process was studied. Finally, penetration experiments were conducted under different cover layer thicknesses. The research results indicate that the error between simulation and experimental results is less than 9.9%, which can better describe the penetration process. While concrete strength significantly affects the radial aperture of JPC/JET penetration, its impact on axial penetration depth is minimal. The presence of a soil cover layer significantly improves the radial expansion characteristics of JPC and JET on concrete target plates. As the thickness of the overlying soil layer increases, the penetration depth of JPC and JET shows a linear decreasing trend. JET reduces the radial aperture of concrete first and then increases, while JPC reduces the radial aperture of concrete in a stepwise manner. The findings provide a theoretical basis for the design of penetrating weapons in complex battlefield environments.