| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Biological Materials Science
|
| Presentation Title |
Bio-inspired 3-phase Composites for Improved Impact Resistance |
| Author(s) |
Shahbaz Mahmood Khan, Ling Li |
| On-Site Speaker (Planned) |
Shahbaz Mahmood Khan |
| Abstract Scope |
Biological material systems, subject to the environment, have intelligently designed multi-layer structures that can act in a multifunctional manner by combining different properties. The Amazonian arapaima fish, for example, feature multilayer structure that evolves from highly mineralized scales to cross-laminated plywood structure. This helps the fish to avoid predatory perforation without compromising its flexibility. In this work, we fabricate and test bio-inspired 3-phase composites materials, with epoxy-embedded architected structure, functionally graduated from entirely ceramic layers to completely epoxy layers. The hard ceramic phase helps in resisting the localized force effects, while the epoxy phase provides confinement and stabilizes the crack growth. Further, to enhance the lateral tensile stiffness, the structure is backed with woven Kevlar fibers. We use the dimensional flexibility of additive manufacturing technique as a tool to geometrically design individual phases mimicking the biological structures with graded layers, each serving a purpose in increased impact resistance. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Composites, |