双层串联蜂窝夹芯复合材料板的抗高速冲击性能研究

Research on the Performance of High-Speed Impact Resistance of Double-Layer Tandem Honeycomb Sandwich Composite Panels

【目的】研究双层串联蜂窝夹芯复合材料板的抗高速冲击性能。【方法】采用Abaqus有限元分析和试验方法,以两种不同材料(玻璃纤维、凯夫拉)分别作为蒙皮的双层串联蜂窝夹芯材料为研究对象,对立方块形破片冲击靶材进行动态过程数值仿真,并与试验结果进行比对分析。【结果】通过研究,得出这两类材料的破片穿透的极限速度及各部分的能量衰减情况。【结论】关于吸能占比,表面蒙皮的抗冲击性能最强,背面蒙皮最弱。

[Purposes]This paper aims to investigate the high speed impact resistance of double-layer tandem honeycomb sandwich composite panels.[Methods]The paper used Abaqus finite element analysis and experimental methods to numerically simulate the dynamic processes and compare them with the experimental results for the cube fragments impact targets using glass fiber(GFRP)and Kevlar as the skin of the double-layer tandem honeycomb sandwich composites,respectively.[Findings]Through research,the limiting velocity of fragment penetration and the energy decay of each part of these two types of materials were obtained.[Conclusions]As for the energy absorption ratio,the strongest impact resistance offirst layer of skin and the weakest of the back skin.