三维夹芯层连织物透波复合材料性能研究

宋元明; 李敏; 王绍凯; 顾轶卓; 张佐光

三维夹芯层连织物透波复合材料性能研究

北京航空航天大学材料科学与工程学院, 空天材料与服役教育部重点实验室, 北京 100191

基金项目: 国家自然科学基金(50803002); 航空科学基金项目(2008ZE51072)

详细信息

中图分类号: TB332
计量
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- 被引次数: 0
出版历程
- 收稿日期: 2010-09-08
- 修回日期: 2010-11-24
- 刊出日期: 2011-10-15

Wave transmission properties of 3D spacer fabric composite

Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100191, China

摘要

摘要: 考察了玻璃纤维三维夹芯层连织物/氰酸酯(CE)复合材料的透波性能, 并与夹芯层连织物/环氧树脂复合材料和蜂窝夹层结构复合材料进行了对比。研究发现: 实验频段范围内三维夹芯层连织物/氰酸酯复合材料的平均透波率高于蜂窝夹层结构复合材料和夹芯层连织物/环氧树脂复合材料; 夹芯层连织物/氰酸酯复合材料的透波率受电磁波入射角度影响较小, 并且在芯柱高度为8 mm时有最大值, 平行经向入射的透波率略大于平行纬向入射的透波率, 8~12 GHz频率的透波率略大于12~18 GHz的透波率; 由于反射作用, 面板增强后夹芯层连织物/氰酸酯复合材料的透波率下降明显。
- 复合材料 /
- 三维夹芯层连织物复合材料 /
- 透波率 /
- 氰酸酯
Abstract: The wave transmission property of the three-dimensional (3D) glass fiber spacer fabric/cyanate ester (CE) composite was investigated by comparison with the 3D spacer fabric/epoxy composite and the honeycomb sandwich composite. The results indicate that the 3D spacer fabric/CE composite shows better wave transmission property than that of both the spacer fabric/epoxy composite and the honeycomb sandwich composite. Moreover, the wave input angle has little influence on the wave transmission property of the 3D spacer fabric/CE composite, and the spacer fabric/CE composite reveals highest wave transmission property with the pile height of 8 mm. When the wave transmits parallel to the warp direction larger transmission property can be observed than that along the weft direction. And the wave transmission property in the range of 8~12 GHz is better than that of 12~18 GHz. Besides, the facesheet reinforcement decreases the wave transmission property due to the wave reflection.
- composite /
- the 3D spacer fabric composite /
- wave transmission rate /
- cyanate ester