| 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 |
Material Hybridization for Tunable TPMS Metastructures |
| Author(s) |
Brandon Huffman, George Youssef |
| On-Site Speaker (Planned) |
George Youssef |
| Abstract Scope |
Constant increases in the number of photocurable resins for additive manufacturing and readily available reinforcing particulates (glass microballoons, carbon nanotubes, etc.), irrespective of form and material class, create opportunities for novel composite materials with improved response. However, combining photocurable resins with glass microballoons alters light/resin interactions and complicates fabrication. This project devises a viable approach to overcome this challenge and investigates the process-structure-property interrelationship of elastic, photocurable, and printable resins as a function of glass microballoons reinforcement ratios and triply periodic minimal surface (TPMS) metastructures. Furthermore, the base resin was modified by foaming agents to control microstructural decorations and tune the properties strategically. Three TPMS structures (gyroid, Schwarz diamond, and Schwarz primitive) are analyzed based on energy absorption and strength. Metastructures are generated with open-source software and 3D printed using a vat photopolymerization process. Multiple reinforcement/foaming agent weight ratios are printed and characterized by compressive mechanical loading at several strain rates to understand the dependencies therein. Mechanical testing is augmented with digital image correlation (DIC) to resolve the full strain state, irrespective of local inhomogeneities caused by particulates. The findings of this research reveal the potential of 3D printable sports gear with tunable properties for impact mitigations in various biomechanical loading scenarios. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |