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A merit parameter to determine the stacking order of heterogeneous diphasic soft armor systems

机译:确定异构双相软装甲系统堆叠顺序的优值参数

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摘要

The effects of stacking order on the ballistic performance may be detrimental if the order is improperly chosen. When the frontal material is constrained transversely by the rear material, it results in sub-optimal performance compared to the alternate configuration where both layers can freely deform. In this study, we examine the possibility of using the Cunniff velocity as a merit parameter in determining the optimal stacking order of heterogeneous diphasic soft armor systems by reviewing the results from previous studies. Experiments were performed on heterogeneous systems comprising ballistic-grade polyurea, Twaron (R) fabric, and Dyneema (R) UD laminate plies. Results show that the two constituent materials should be ordered such that the material with a higher Cunniff velocity is placed at the rear to minimize interference. The use of the merit parameter is then analyzed via existing models to examine the effects of changing various parameters. We further discuss the idea of "ballistically-thin" materials in relation to the concept of membrane strain energy dissipation efficiency of a soft armor target.
机译:如果顺序选择不正确,堆叠顺序对弹道性能的影响可能是有害的。当前部材料被后部材料横向约束时,与两层都可以自由变形的替代构造相比,它会导致次优性能。在这项研究中,我们通过回顾以前的研究结果,研究了使用Cunniff速度作为优劣参数确定异构双相软装甲系统最佳堆叠顺序的可能性。在包括弹道级聚脲,Twaron(R)织物和Dyneema(R)UD层压板的异质系统上进行了实验。结果表明,应该对两种构成材料进行排序,以便将具有较高Cunniff速度的材料放在后部,以最大程度地减少干扰。然后通过现有模型分析绩效参数的使用,以检查更改各种参数的影响。我们将进一步讨论“弹道薄”材料与软装甲目标的膜应变能耗散效率的概念。

著录项

  • 来源
    《Composite Structures》 |2020年第6期|112086.1-112086.16|共16页
  • 作者

  • 作者单位

    Purdue Univ Sch Aeronaut & Astronaut W Lafayette IN 47907 USA;

    Purdue Univ Sch Aeronaut & Astronaut W Lafayette IN 47907 USA|Purdue Univ Sch Mat Engn W Lafayette IN 47907 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Soft armor; Merit parameter; Stacking order; Ballistic impact; Energy absorption;

    机译:软装甲;优点参数;堆叠顺序;弹道冲击;能量吸收;

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