| About this Abstract |
| Meeting |
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
| Symposium
|
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
| Presentation Title |
Wing-Shaped Leading-Edge Stealth Composites Using an Over-Expanded Honeycomb Core and a Periodic Pattern Etched on Ni-Coated Glass Fabric for Lightning Strike Protection |
| Author(s) |
Seonghaeng Heo, Shanigaram Mallesh, Hannah Jang, Dongjun Hong, Byeongsu Kwak, Juhyeong Lee, Youngwoo Nam |
| On-Site Speaker (Planned) |
Hannah Jang |
| Abstract Scope |
Lightning strikes usually cause considerable consequences for aircraft, such as structural damage, electrical system disruption, and potential fire hazards. Given that the probability of aircraft being affected by lightning is not negligible, safeguarding aircraft from lightning strikes becomes vital to ensure the safety and integrity of the aircraft, as well as the well-being of passengers and crew. This study proposed a novel radar absorbing structure (RAS) comprising sandwich corrugated cores and periodic pattern surface for lightning strike protection. Corrugated core was designed and fabricated using nickel-coated glass fiber, which can effectively absorb electromagnetic (EM) waves, and poly-ether-ether-ketone (PEEK), which can improve corrosion resistance fatigue properties. Designed RAS with corrugated cores and periodic pattern surface were subjected to the artificial lightning strike of the waveform for component A. Pristine and damaged specimens of RAS from artificial lightning strikes were measured using a free-space measurement system. The specimens of fabricated RAS exhibited satisfactory EM absorption at broadband (4 - 18 GHz) and well matched the simulation results. Damaged specimens from lightning strikes were evaluated using micro X-ray computed tomography (CT). Given the radar absorption performance of the proposed structures, it can lead to considerable promise for applications in stealth technology. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |