| 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 |
Origami and Kirigami-Inspired Sandwich Panels for UAM Primary Structural Applications |
| Author(s) |
Kalyan Raj Kota, Juhyeong Lee |
| On-Site Speaker (Planned) |
Juhyeong Lee |
| Abstract Scope |
A foldcore sandwich composite (FSC) provides highly tailorable structural and multifunctional performance over legacy sandwich composites made with honeycomb or polymer foam cores. Face sheets and foldcore are made from any flat sheets of single or hybrid materials, which have been folded into a desired pattern; origami core is involved with folding only, while kirigami core is associated with cutting and folding. The choice of material and core geometry strongly depends on the applications’ performance requirements, so they can be optimized to accommodate various materials and core geometries suitable for lightweight protective structures. Overall, origami- or kirigami-inspired FSCs have the potential to revolutionize the way we design and build aerospace structures operating under harsh conditions.
This work will investigate dynamic impact resistance of FSCs with various core geometries and evaluate their potential fits with future urban air mobility (UAM) primary structure applications. A total of six different core geometries will be studied in this work. Effects of origami and kirigami foldcores on FSC’s impact damage will be numerically investigated using a recently-developed in-house composite damage model. The primary objectives of the present work are to (1) characterize structural characteristics and corresponding damage morphologies of CFRP FSCs subjected to hyper-velocity impacts (HVIs; > 2 km/s) and (2) identify critical foldcore design parameters. This work serves as a baseline study to provide an in-depth understanding of novel aerospace sandwich panels, particularly for lightweight UAM primary structure applications, offering excellent impact mitigation performance. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |