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 |
Fatigue Performance of Recyclable Additively Manufactured Fiber-Reinforced Composites Internal Shell Structures for Wind Blades |
Author(s) |
James Tobin, Adam G. Stevens, Nadim S. Hmeidat, Tyler Smith, Julian Charron, Alex C. Roschli, Pascal Meyer, Michael Schuster, Wendy Lin, Vlastimil Kunc, Ahmed Arabi Hassen |
On-Site Speaker (Planned) |
James Tobin |
Abstract Scope |
The use of additively manufactured grid structures to stiffen monolithic fiberglass skins offers an opportunity to eliminate labor-intensive infused sandwich shell structures common in conventional wind blades. Enhancing the fatigue performance of additively manufactured fiber composites for wind blade structures presents a critical imperative. Optimizing the fatigue resistance of these materials is paramount to ensuring the long-term reliability and sustainability of wind energy systems. This work presents the challenges and opportunities in meeting fatigue performance requirements for wind turbine structures. In this work we will showcase a large-scale pilot project utilizing multi-head additive manufacturing to fabricate a 12-meter blade tip for structural testing. Recent efforts focusing on characterizing and enhancing fatigue performance, particularly using a new glass-fiber reinforced thermoplastic epoxy composite, will be discussed. A comparative analysis of static and strain-controlled fatigue performance between additively manufactured and injection molded parts will be presented. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |