About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Symposium
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2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
Presentation Title |
Shape Memory Alloy Enabled Interlocking Metasurfaces by L-PBF |
Author(s) |
Abdelrahman Rashed Mohmaed Elsayed |
On-Site Speaker (Planned) |
Abdelrahman Rashed Mohmaed Elsayed |
Abstract Scope |
This study examines the use of the shape memory effect in NiTi shape memory alloys (SMAs) for Interlocking Metasurfaces (ILM). Two designs of surface feature arrays were created using NiTi powders and laser powder bed fusion additive manufacturing (AM). These designs were tested to assess their locking force under thermal cycling. The results indicate that the interlocks exhibit high locking force, complete shape recovery, and cyclic stability. Finite Element Analysis (FEA) was employed to predict strain values during deformation and to guide the design process. FEA results forecast the maximum transformation strain during deformation, which can be recovered by heating, enabling the material to revert to its original shape. The findings suggest that NiTi SMAs can be utilized for designing and fabricating complex, high-force interlocking metasurfaces, facilitated by AM, which can be locked in place by heating and reused through the shape memory effect. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |