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http://dx.doi.org/10.18419/opus-12422
Autor(en): | Grisin, Benjamin Carosella, Stefan Middendorf, Peter |
Titel: | Dry fibre placement : the influence of process parameters on mechanical laminate properties and infusion behaviour |
Erscheinungsdatum: | 2021 |
Dokumentart: | Zeitschriftenartikel |
Seiten: | 16 |
Erschienen in: | Polymers 13 (2021), No. 3853 |
URI: | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-124416 http://elib.uni-stuttgart.de/handle/11682/12441 http://dx.doi.org/10.18419/opus-12422 |
ISSN: | 2073-4360 |
Zusammenfassung: | Within the dry fibre placement (DFP) process, spread and pre-bindered carbon fibre rovings are automatically processed into dry textile preforms using 2-D and 3-D laying systems. The aim was to automate existing hand lay-up processes, reducing the complexity, increasing robustness, and facilitating the handling of the DFP technology. Process reliability, low waste rates, and flexible production are demonstrated. In this publication, the influences of the process parameters, 2 mm wide gaps and the percentage of 90° plies in the laminate, are investigated with regard to the mechanical properties, the permeability, and the infusion times in the preform z-direction (thickness). The effects on stiffness and strength are compared for several use cases. An approach to determine the infusion times as a function of the laminate thickness, the ply structure, and 2 mm wide gaps is demonstrated and analysed using vacuum-assisted process (VAP) infusion tests. The investigations are performed with carbon fibre tows (24 k), a reactive epoxy-based binder system, and a thermoset infusion resin system. |
Enthalten in den Sammlungen: | 06 Fakultät Luft- und Raumfahrttechnik und Geodäsie |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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polymers-13-03853-v2.pdf | 2,84 MB | Adobe PDF | Öffnen/Anzeigen |
Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons