含碳纳米管薄膜表层的蜂窝夹芯壁板模拟雷击试验研究

doi:10.19936/j.cnki.2096-8000.20210328.009

复合材料科学与工程 ›› 2021, Vol. 0 ›› Issue (3): 60-65.DOI: 10.19936/j.cnki.2096-8000.20210328.009

含碳纳米管薄膜表层的蜂窝夹芯壁板模拟雷击试验研究

王永伟¹, 严刚^1*, 郭飞²

1.南京航空航天大学航空学院机械结构力学及控制国家重点实验室,南京210016;
2.陆军工程大学电磁环境效应与光电工程国家级重点实验室,南京210007

收稿日期:2020-07-21 出版日期:2021-03-28 发布日期:2021-04-30
通讯作者: 严刚(1981-),男,博士,副教授,主要从事结构健康监测、复合材料结构强度等方面的研究,yangang@nuaa.edu.cn。
作者简介:王永伟(1996-),男,硕士研究生,主要从事复合材料结构雷击损伤方面的研究。
基金资助:
航空科学基金(2017ZA52005);江苏高校优势学科建设工程资助项目

EXPERIMENTAL STUDY OF SIMULATED LIGHTNING STRIKE ON HONEYCOMB SANDWICH PANEL WITH CARBON NANOTUBE FILM

WANG Yong-wei¹, YAN Gang^1*, GUO Fei²

1. State Key Laboratory of Mechanics and Control of Mechanical Structures, College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. National Key Laboratory on Electromagnetic Environmental Effects and Electro-optical Engineering, Army Engineering University of PLA, Nanjing 210007, China

Received:2020-07-21 Online:2021-03-28 Published:2021-04-30

摘要/Abstract

摘要： 近年来复合材料以其优异性能而被广泛应用于航空结构中,但复合材料的整体导电性较低,遭受雷击容易造成严重损伤,威胁结构安全。本文提出将碳纳米管薄膜与复合材料结构共固化形成导电表层,对雷击进行防护。为验证碳纳米管薄膜表层的防护效果,制备了碳纳米管薄膜表层防护的复合材料蜂窝夹芯壁板试验件,施加不同峰值的模拟雷击电流,使用高速摄像机记录其雷击过程,并通过目视和CT扫描对其损伤进行检测。结果表明:不同雷电流峰值情况下,雷电流峰值越大,试验件的表层损伤面积和内部分层损伤长度也越大;相同雷电流峰值情况下,含碳纳米管薄膜防护试验件的表层损伤面积和内部分层损伤长度明显减小,由此可以得知碳纳米管薄膜表层对复合材料蜂窝夹芯壁板的雷击损伤具有较好的防护效果。

关键词: 复合材料结构, 碳纳米管薄膜, 雷击防护, 模拟雷击试验

Abstract: In recent years, composite materials have been widely used in aircraft structures due to their advantages. However, the overall electrical conductivity of composite materials is relatively low, thus it is easy to produce severe damage when encountering lightning strike, threatening the structural safety. In this paper, carbon nanotube film (CNTF) is co-cured with composite structure to form a conductive surface layer to protect it against lightning strike. In order to verify the protective effect, composite honeycomb sandwich panels with CNTF layer are fabricated, and simulated lightning strikes with different peak currents are applied to them. The lightning strike processes are recorded by a high-speed camera, and the damage is examined by visual inspection and X-ray CT scanning. Test results have shown that, under different peak lightning currents, the larger the current is, the larger the area of surface damage and the length of internal delamination are. Under the same peak lightning current, the area of surface damage and the length of internal delamination of the CNTF protected structures are significantly reduced. It can be concluded that the CNTF surface layer has good protection effect against the lightning strike for composite honeycomb sandwich panel.

Key words: composite structure, carbon nanotube film, lightning protection, simulated lightning strike test

中图分类号:

TB332

王永伟, 严刚, 郭飞. 含碳纳米管薄膜表层的蜂窝夹芯壁板模拟雷击试验研究[J]. 复合材料科学与工程, 2021, 0(3): 60-65.

WANG Yong-wei, YAN Gang, GUO Fei. EXPERIMENTAL STUDY OF SIMULATED LIGHTNING STRIKE ON HONEYCOMB SANDWICH PANEL WITH CARBON NANOTUBE FILM[J]. COMPOSITES SCIENCE AND ENGINEERING, 2021, 0(3): 60-65.

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含碳纳米管薄膜表层的蜂窝夹芯壁板模拟雷击试验研究

EXPERIMENTAL STUDY OF SIMULATED LIGHTNING STRIKE ON HONEYCOMB SANDWICH PANEL WITH CARBON NANOTUBE FILM

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