Flexible fabrics have been widely used in body armor designs. Here we report ballistic impact damage of stacked cross-plied composite fabric and cross-plied laminated panels. The ballistic impact behaviors of stacked cross-plied composite fabric and cross-plied laminated panel have been tested with fragment-simulating projectiles under the strike velocity 550–600 m/s to explore the influence of the layers combination of fabric target on ballistic impact. Two types of macroscopic anisotropy continua finite element models based on fabric targets structures are established to analyze the ballistic mechanism of stacked cross-plied composite fabric and cross-plied laminated panels. The impact damage morphologies and energy absorptions have also been compared between the tests and finite element analysis results. We have found the stacked fabric construction absorbed more energy than their counterpart cross-plied laminated panel, while the laminated panel shows better structural integrity and stability during ballistic penetration.

中文翻译：

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叠层交叉复合织物和层压板的弹道穿透损伤和能量吸收

柔性织物已广泛用于防弹衣设计。在这里，我们报告了堆叠交叉层压复合织物和交叉层压层压板的弹道冲击损坏。用破片模拟弹丸在550-600 m/s的打击速度下对叠层交叉复合织物和交叉层压板的弹道冲击行为进行了测试，以探索织物目标层组合对弹道冲击的影响。建立了两种基于织物靶结构的宏观各向异性连续有限元模型，分析了叠层交叉复合织物和交叉层合板的弹道机理。还比较了试验和有限元分析结果之间的冲击损伤形态和能量吸收。