July 2019

Conference Paper

Lightning Strike Damage of CF/Epoxy Composite Laminates with Conductive Polymer Layers

By:
Yokozeki, Tomohiro; Kumar, Vipin ; Zhou, Yu; Okada, Takao; Goto, Teruya; Takahashi, Tatsuhiro
Page Number:
1022-1030
Book Title:
ICAF 2019 – Structural Integrity in the Age of Additive Manufacturing
Publication Date:
July 30, 2019
Conference Name:
30th Symposium of the International Committee on Aeronautical Fatigue (ICAF 2019)
Conference Location:
Krakow, Poland
Conference Sponsor:
ICAF
View DOI Listing:
https://doi.org/10.1007/978-3-030-21503-3_80

Abstract

Carbon fiber reinforced plastics (CFRPs) are prone to severe damages by lightning strikes due to their low electrical conductivity. Current lightning strike protection (LSP) technology generally consists of metal foils/films on the surface of composite airframe structures. The present work aims to introduce all polymeric conductive layer for LSP of CFRP structures. Intrinsic conductive polymer i.e. Polyaniline (PANI) is used to make a thermosetting polymer mixture. CFRPs coated with this electrically conductive, all polymeric layer was tested against simulated lighting strike. It has been shown that PANI-LSP specimens dissipated the lightning current effectively and provided enough residual mechanical properties of CFRPs.


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