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 |
Laser-induced graphene-aramid fabric composite as radar absorbing structure for stealth aircrafts |
Author(s) |
Seongjun Kim, Kinal Kim, Sangwon Lee, Sangeui Lee |
On-Site Speaker (Planned) |
Seongjun Kim |
Abstract Scope |
Stealth technology can improve the mission capability and survivability of military weapon systems by avoiding detection by enemy radar. Laser-induced graphene (LIG) can be attractive as radar-absorbing material because it can form graphene on a substrate through direct laser writing and has tailored electrical conductivity. The crystallinity, electrical conductivity, and shape of LIG can be controlled depending on the laser power, speed, and number of overlaps, which induces desirable permittivity and conductivity for the radar absorption. In this study, the electromagnetic properties of LIG were investigated according to the laser process parameters. In addition, the change in the network of LIG on aramid fabrics and electromagnetic properties of the LIG-Aramid composites due to epoxy resin infusion was investigated. The LIG-based radar absorbing structure (RAS) was designed to absorb microwave in the X-band, and its simulated reflection loss was found to be in good agreement with the experiment. Therefore, it can be drawn that the LIG-based Aramid fiber-reinforced composite can be a promising candidate of lightweight load-bearing radar-absorbing structures in aerospace and military applications. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |