Study on Anti-fragment Penetration Performance of Composite Protective Structure
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摘要:为提高复合柔性结构的抗破片侵彻能力，采用AUTODYN中Euler-Lagarange算法对不同位置和厚度聚脲材料复合柔性结构的抗破片侵彻效果进行数值模拟，并通过正交试验对复合柔性结构防护性能的影响因素进行了研究。结果表明：聚脲材料在复合柔性结构内侧位置时抗破片侵彻能力最强；抗破片侵彻效果与聚脲材料厚度成正比；复合柔性结构防护性能影响因素的主次顺序为：防爆液体厚度、芳纶纤维层数、聚脲材料位置、聚脲材料厚度。
Abstract:In order to improve the anti fragment penetration ability of composite flexible structure, the anti penetration effect of composite flexible structure with different position and thickness of polyurea material was numerically simulated by Euler-Lagarange algorithm in AUTODYN, and the influence factors of its protective performance were studied by orthogonal test. The results show that the polyurea material has the strongest anti fragment penetration ability at the inner side of the composite flexible structure, the anti fragment penetration effect is directly proportional to the thickness of polyurea material. The order of factors affecting the protective performance of composite flexible structure from high to low is: thickness of explosion-proof liquid, number of aramid layers, location of polyurea material , thickness of polyurea material.
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