Presentation Type
Poster
Start Date
5-8-2024 11:00 AM
End Date
5-8-2024 1:00 PM
Subjects
Additive manufacturing, Microscopy, Materials science
Advisor
Dr. Alexander Hunt
Student Level
Doctoral
Abstract
Fused deposition modeling (FDM) is an additive manufacturing (AM) process which can create parts with complex geometries in their final shape without need for additional specialized tools or devices. The FDM process builds parts by adding material layer by layer only where it is needed, saving energy, costs, production time for complex parts, and minimizing waste. Fiber reinforcement can significantly enhance the mechanical properties of a polymer material and depends significantly on the fiber length distribution and fiber orientation distribution of the final part. In this research, we investigated the various infill patterns of FDM printed Markforged onyx which is a nylon filament samples with chopped up carbon fiber (CF) reinforcement. The effects of printing parameters of the FDM samples was then characterized through material strength testing, optical microscopy, and electron microscopy to investigate the relation to surface morphology, microstructure, and void fractions. Investigating and optimizing the adhesion between polymer matrices and carbon fibers has the potential to provide significant impacts on the utility that different materials reinforced with chopped carbon fibers produced by FDM may have in manufacturing.
Creative Commons License or Rights Statement
This work is licensed under a Creative Commons Attribution 4.0 License.
Persistent Identifier
https://archives.pdx.edu/ds/psu/41899
Included in
Characterization of Chopped Carbon Fiber Reinforced Composites Produced Using Fused Deposition Modeling
Fused deposition modeling (FDM) is an additive manufacturing (AM) process which can create parts with complex geometries in their final shape without need for additional specialized tools or devices. The FDM process builds parts by adding material layer by layer only where it is needed, saving energy, costs, production time for complex parts, and minimizing waste. Fiber reinforcement can significantly enhance the mechanical properties of a polymer material and depends significantly on the fiber length distribution and fiber orientation distribution of the final part. In this research, we investigated the various infill patterns of FDM printed Markforged onyx which is a nylon filament samples with chopped up carbon fiber (CF) reinforcement. The effects of printing parameters of the FDM samples was then characterized through material strength testing, optical microscopy, and electron microscopy to investigate the relation to surface morphology, microstructure, and void fractions. Investigating and optimizing the adhesion between polymer matrices and carbon fibers has the potential to provide significant impacts on the utility that different materials reinforced with chopped carbon fibers produced by FDM may have in manufacturing.