| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing and Innovative Powder/Wire Processing of Multifunctional Materials
|
| Presentation Title |
Shape Memory Alloy Enabled Interlocking Metasurfaces |
| Author(s) |
Abdelrahman Elsayed, Benjamin Young, Ophelia Bolmin, Philip Noell, Brad Boyce, Alaa Elwany, Ibrahim Karaman |
| On-Site Speaker (Planned) |
Abdelrahman Elsayed |
| Abstract Scope |
This study explores the potential of utilizing the shape memory effect in NiTi shape memory alloys (SMAs) for Interlocking Metasurfaces (ILM). Two designs of surface feature arrays were fabricated using NiTi powders and laser powder bed fusion additive manufacturing (AM). They are tested to evaluate their locking force under thermal cycling. The results demonstrate that the interlocks possess high locking force, full shape recovery, and cyclic stability. Finite Element Analysis (FEA), capable of analyzing SMA behavior, was utilized to predict the strain values during deformation and guide the design process. The FEA results predict the maximum transformation strain during deformation, which can be recovered upon heating, allowing the material to retain its original shape. The findings suggest that NiTi SMAs can be harnessed for designing and fabricating complex, high-force interlocking metasurfaces, enabled by AM, which can be locked in place by heating and used repeatedly through shape memory effect. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Joining, |