Lightning strike design test and verification of composite laminates

doi:10.19936/j.cnki.2096-8000.20220528.014

Abstract

Abstract: In order to verify the effectiveness of lightning strike protection design for aircraft carbon fiber composite material structure, a series of lightning strike tests were designed, which were based on multiple sizes of copper wire mesh with different densities and multiple sorts of aircraft lightning zones. The test results were evaluated through different methods, including the visual damage observation, thermal imaging observation and ultrasonic nondestructive testing. The lightning damage degrees and characteristics of carbon fiber composite laminates were compared and analyzed. Based on the tests, the damage situation of six different zones on the aircraft were studied, and the specimens were classified and analyzed according to the damage severity, and the composite lightning protection design measures were effective, which could ensure the flight safety of a certain type of aircraft composite structure after lightning strikes. It is recommended that the current CU195 copper mesh should be used in Zone one,but there are still optimization space. Now it is advisable to use copper mesh specification of CU142. In addition, the reasonable suggestions about the copper mesh sizes for other lightning zones have been given. It has important reference value for other similar composite material structure.

Key words: composite laminates, lightning strike protection, copper wire mesh, aircraft structure

CLC Number:

TB332

HUANG Xin, WEN Yong-hong, LI Yan, TANG Hua-jing, XIA Yan-peng. Lightning strike design test and verification of composite laminates[J]. COMPOSITES SCIENCE AND ENGINEERING, 2022, 0(5): 98-102.

References

[1] 马立敏, 张嘉振, 岳广全, 等. 复合材料在新一代大型民用飞机中的应用[J]. 复合材料学报, 2015(2): 317-322.
[2] 汪萍. 复合材料在大型民用飞机中的应用[J]. 民用飞机设计与研究, 2008(3): 11-15.
[3] 肖尧, 李曙林, 尹俊杰, 等. 含铜网复合材料雷电流直接效应实验研究[J]. 航空材料学报, 2018, 38(4): 109-114.
[4] 王富生, 姬尧尧, 刘志强, 等. 复合材料雷击放电效应三维数值模拟[J]. 振动与冲击, 2014, 33(22): 13-20.
[5] 朱健健, 李梦. 航空复合材料结构雷击损伤与雷击防护的研究进展[J]. 材料导报, 2015, 29(17): 37-42, 67.
[6] 肖尧, 李曙林, 王育虔, 等. 复合材料电导率对雷击烧蚀损伤程度的影响[J]. 航空材料学报, 2018, 38(5): 123-131.
[7] WELCH J M. Repair design, test, and process considerations for lightning strikes. 3rd[J]. FAA/EASA/Boeing/Airbus Joint Workshop on Safety and Certification. Amsterdam, NL, 2007.
[8] KAWAKAMI H, FERABOLI P. Lightning strike damage resistance and tolerance of scarf-repaired mesh-protected carbon fiber composites[J]. Composites Part A: Applied Science and Manufacturing, 2011, 42(9): 1247-1262.
[9] 周家东, 熊秀, 谢健, 等. 复合材料延性雷电防护金属网仿真与试验研究[J]. 飞机设计, 2017(3), 37: 70-76.
[10] 张勇, 张越梅, 房延志. 飞机结构雷电防护试验符合性验证[J]. 航空科学技术, 2012(2): 62-64.
[11] 孙金波. Y12F飞机复合材料雷达罩雷电防护符合性验证[J]. 复合材料科学与工程, 2020, 321(10): 94-101.
[12] 刘志强, 岳珠峰, 王富生, 等. 不同防护形式复合材料板雷击损伤分区特性[J]. 复合材料学报, 2015, 32(1): 284-294.
[13] 司晓亮, 李志宝, 刘辉平, 等. 碳纤维复合材料雷电损伤预测[J]. 高电压技术, 2017, 43(5): 1453-1459.
[14] 刘松平, 刘菲菲, 王文贵, 等. 复合材料雷击损伤超声成像检测[J].航空制造技术, 2015(7): 26-29.
[15] 杨乃宾, 梁伟. 大飞机复合材料结构设计导论[M]. 北京: 航空工业出版社, 2009: 84-85.