About this Abstract |
| Meeting |
2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
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| Symposium
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2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
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| Presentation Title |
Quasi-static and dynamic properties in flexible fused filament fabrication polymers |
| Author(s) |
Rebecca Anne A. Ang, Partha Pandit, Anna Keim, Monique S. McClain, Luz D. Sotelo |
| On-Site Speaker (Planned) |
Rebecca Anne A. Ang |
| Abstract Scope |
Additively manufactured (AM) Fused filament fabrication (FFF) polymers exhibit varying properties depending on if the applied load is quasi-static or dynamic, due to the viscoelasticity of thermoplastic polymer chains. Although extensive research exists on FFF polymer material properties, much of it focuses on rigid polymers. This study investigates the hypothesis that the addition of carbon fiber filler significantly affects the quasi-static and dynamic viscoelastic properties of FFF AM thermoplastic polyurethane (TPU). This objective is accomplished by performing dynamic mechanical analysis (DMA), tensile, and ultrasound testing. Complex moduli of TPU and carbon fiber filled TPU (TPU-CF) were estimated using ultrasound and DMA to capture a broad dynamic loading range while verifying results across measurements. Tensile testing was done to measure the quasi-static modulus. These results are expected improve predictions of FFF AM TPU’s behavior, while this multimodality approach enables a more holistic understanding of the viscoelastic transition for flexible AM polymers. |
| Proceedings Inclusion? |
Undecided |