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Title
Quasi-static and dynamic crush behaviour of 3D printed thin-walled profiles reinforced with continuous carbon and glass fibres
Author
Morales, UnaiMondragon Unibertsitatea
Esnaola, AritzMondragon Unibertsitatea
Iragi, MikelMondragon Unibertsitatea
Aretxabaleta, Laurentzi ccMondragon Unibertsitatea
Aurrekoetxea, JonMondragon Unibertsitatea
Research Group
Tecnología de plásticos y compuestos
Published Date
2021
Publisher
Elsevier
Keywords
polymer-matrix composites
Impact behaviour
Microstructures
3D printing
Abstract
The present paper investigates the suitability of cFF printed material and technologies for crashworthiness applications. To this end, the quasi-static and dynamic crush behaviour of 3D printed thin-w ... [+]
The present paper investigates the suitability of cFF printed material and technologies for crashworthiness applications. To this end, the quasi-static and dynamic crush behaviour of 3D printed thin-walled hollow profiles reinforced with continuous carbon (cCF/PA) and glass fibres (cGF/PA), in axial and radial loading were analysed. Despite the specific microstrutural differences generated during 3D printing, the nature of the constituents (fibre and matrix) controlled the differences between the crush behaviour of both profiles. Although a stable collapse mode was observed for each profile under quasi-static and impact loading, a ductile response was only reported for the cGF/PA profiles. Under radial quasi-static conditions the cCF/PA profiles showed SEA values greater than the cGF/PAs. Nevertheless, the radial impact performance of the cGF/PA profile was greater as the material presented a strain-rate dependency. The radial SEA values obtained for steered glass fibres were lower than those values obtained for axial loading. However these SEA values are promising, in that they were at least 2–3 times higher than any values found in the literature. The results therefore indicate that concentrically printed cGF/PA reinforcements could be exploited for impact loaded hollow profile applications. [-]
URI
https://hdl.handle.net/20.500.11984/5840
Publisher’s version
https://doi.org/10.1016/j.compositesb.2021.108865
ISSN
1359-8368
Published at
Composites Part B: Engineering  Vol. 221. N. artículo 108865
Document type
Article
Version
Submitted
Rights
© 2021 Elsevier Ltd
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  • Articles - Engineering [444]

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