| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Agile Additive Manufacturing by Employing Breakthrough Functionalities
|
| Presentation Title |
Crystal Inspired Architected Material: Fracture Mechanism and Crack Propagation |
| Author(s) |
Hsing Lin Wu, Mihn Son Pham |
| On-Site Speaker (Planned) |
Hsing Lin Wu |
| Abstract Scope |
Metallic 3D printing has revolutionized manufacturing by enabling the fabrication of intricate lattice structures that were previously unattainable using traditional methods. However, most architected lattice designs suffer from poor post-yielding properties, limiting their practical applications. This study proposes a novel crystal-inspired lattice design that mimics metallic polycrystalline structures, incorporating different orientations within the lattice's unit cells (meta-grains). Through the combination of metallic additive manufacturing and crystal-inspired design, improved post-yielding properties are achieved. This research focuses on investigating the fracture mechanism and crack propagation behavior of the crystal-inspired lattice under compact tension. Additionally, protocols for determining the fracture toughness of meta-crystals will be established. Digital image correlation will capture mesoscale deformation behavior, X-ray computed tomography will assess the influence of manufacturing defects, and microstructural analysis will provide detailed information about the impact of the metallic base material. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, |