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The influence of utilizing different materials and their configurations on ballistic panels blast resistance

机译:利用不同材料及其配置对弹道板抗抗衡性的影响

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The article is focused on materials and their configurations to provide protection against explosive blasts of lightly armored vehicles. The authors consider elastomeric material, aluminum and polyurethane foams which are easily available on the local market at a reasonable cost. A computer simulation method was chosen to solve the problem in an efficient way. The Finite Element Method (FEM) implemented in the LS-DYNA commercial code was used with an explicit (central difference) time integration algorithm. Space discretization for each option was made with three dimensional elements ensuring satisfying accuracy of the calculations. The obtained results indicate that the discussed ballistic panels may be utilized as vehicle crew protection. The investigation proves that panels made of energy consuming materials limit the maximum level of reaction force. The highest reaction is observed when polyurethane foam interacts with a blast wave. In other variants both the forces maximum values and curve shapes are similar. Simulations show that ballistic panel supports rebounds from the massive block quickly after the blast reaches its target, which is crucial for the obtained results.
机译:本文专注于材料及其配置,以防止轻型装甲车辆的爆炸性爆炸。作者认为弹性体材料,铝和聚氨酯泡沫,以合理的成本在当地市场上轻松获得。选择计算机仿真方法以以有效的方式解决问题。 LS-DYNA商业代码中实现的有限元方法(FEM)与显式(中心差异)时间集成算法一起使用。每个选项的空间离散化是用三维元素进行的,确保满足计算的准确性。所获得的结果表明,所讨论的弹道面板可以用作车辆船员保护。调查证明,由能耗材料制成的面板限制了反作用力的最大水平。当聚氨酯泡沫与爆发波相互作用时,观察到最高反应。在其他变体中,力最大值和曲线形状都是相似的。模拟表明,弹道面板在爆炸达到其目标后,迅速支持从大规模块的反弹,这对于获得的结果至关重要。

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