Haoqi Zhang
3D printing of continuous carbon fibre reinforced powder-based epoxy composites
Zhang, Haoqi; Zhang, Ka; Li, Aonan; Wan, Lei; Robert, Colin; Ó Brádaigh, Conchúr M.; Yang, Dongmin
Authors
Ka Zhang
Aonan Li
Dr Ray Wan L.Wan@hull.ac.uk
Lecturer in Mechanical Engineering
Colin Robert
Conchúr M. Ó Brádaigh
Dongmin Yang
Abstract
This paper presents an experimental study on 3D printing of continuous carbon fibre reinforced thermoset epoxy composites. Powder-based solid epoxy was electrostatically flocked on the 1K continuous carbon fibre tow and then melted to fabricate composite filaments. The produced filament was printed using a modified extrusion-based printer which melted and deposited the filament following designed printing paths, to form multilayer preforms with complex geometries. After vacuum bagging and oven curing, high tensile strength (1372.4 MPa) and modulus (98.2 GPa) were obtained in the fibre direction due to the good wettability of epoxy and the consequent high fibre volume fraction (56%). The tensile tests of open-hole composites were also conducted, in which the sample with designed stress-lines fibre paths was seen to improve the ultimate strength by 95% compared with the mechanically-drilled sample. Other case studies, such as a spanner and a lattice structure, further demonstrated the design freedom of produced filaments for complex geometries.
Citation
Zhang, H., Zhang, K., Li, A., Wan, L., Robert, C., Ó Brádaigh, C. M., & Yang, D. (2022). 3D printing of continuous carbon fibre reinforced powder-based epoxy composites. Composites Communications, 33, Article 101239. https://doi.org/10.1016/j.coco.2022.101239
| Journal Article Type | Article |
|---|---|
| Acceptance Date | Jun 28, 2022 |
| Online Publication Date | Jun 30, 2022 |
| Publication Date | Aug 1, 2022 |
| Deposit Date | Oct 15, 2024 |
| Publicly Available Date | Oct 22, 2024 |
| Journal | Composites Communications |
| Electronic ISSN | 2452-2139 |
| Publisher | Elsevier |
| Peer Reviewed | Peer Reviewed |
| Volume | 33 |
| Article Number | 101239 |
| DOI | https://doi.org/10.1016/j.coco.2022.101239 |
| Keywords | 3D printing; Filament fabrication; Continuous carbon fibre reinforced composites; Powder epoxy; Electrostatic powder deposition |
| Public URL | https://hull-repository.worktribe.com/output/4866208 |
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Publisher Licence URL
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Copyright Statement
© 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://http://creativecommons.org/licenses/by-nc-nd/4.0/)
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