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)
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Presentation Title |
Predicting the Fatigue Life of a Multi-Jet Fusion Fabricated Polyamide 11 Ankle-foot Orthosis: Durability Insights from S-N Curve Analysis |
Author(s) |
Ryan Blakis, Mladenko Kajtaz |
On-Site Speaker (Planned) |
Ryan Blakis |
Abstract Scope |
In this study, we assessed the fatigue performance of HP Multi Jet Fusion (MJF) polyamide 11, specifically targeting its application in 3D-printed ankle-foot orthoses (AFO). We produced an S-N curve to characterize the material's endurance under cyclic flexural stress by performing fully reversed flexural fatigue tests according to ASTM D7774. To test the accuracy of the S-N curve in predicting the fatigue life of the AFOs, we subjected 3D-printed AFOs to fatigue testing that replicated real-world stresses. Our results demonstrated a correlation between the S-N curve predictions and the actual performance of the 3D-printed AFOs, providing crucial insights into the life of HP MJF fabricated orthoses subject to fatigue. This study offers a foundation for further research and development in 3D-printed AFOs, highlighting the importance of fatigue characterisation in ensuring patient safety and device durability. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |