| 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 |
Failure Mechanism and Energy Absorption Characteristics of Auxetic Pyrolytic Carbon Reinforcements Embedded in Different Matrix Materials |
| Author(s) |
Wenhua Lin, Ali Naderi, Mark Flores, Yeqing Wang |
| On-Site Speaker (Planned) |
Wenhua Lin |
| Abstract Scope |
Auxetics are a new type of engineered mechanical metamaterials that exhibit negative Poisson’s ratio, which will contract/expand transversely when subjected to axial compression/tension. The interest of developing auxetics arises as producing auxeticity has been reported to provide enhancements in various properties, such as impact and indentation resistance, energy absorption capability, fracture toughness, and strain sensing, etc. In this study, we propose a new auxetic composite system consisting of designed auxetic pyrolytic carbon lattice as reinforcements, along with two different matrix materials, i.e. epoxy polymer and foaming silicone. Although recent studies have reported the outstanding properties of the pyrolytic carbon lattices, harnessing the structural benefits from auxetic architectures to further enhance the properties and integrating the 3D interconnected pyrolytic carbon lattices into different matrix materials still have not been investigated. Our proposed auxetic pyrolytic carbon lattice composite system is expected to benefit from both the auxetic architecture of the structure and the intrinsic outstanding properties of the pyrolytic carbon as well as the energy absorption capability of incorporated matrix materials, thereby offering a unique material solution towards composite materials with excellent energy absorption capability. In this paper, we present our results on the failure mechanism and energy absorption characteristics of proposed auxetic pyrolytic carbon reinforced composites with two different matrix materials under compression, with both experimental tests and numerical simulations. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |