Chadwick, Ashley und Kotzur, Karola und Nowotny, Sebastian (2021) Moderation of thermoplastic composite crystallinity and mechanical properties through in situ manufacturing and post-manufacturing tempering: Part 1 - Mechanical characterisation. Composites Part A: Applied Science and Manufacturing, 143. Elsevier. doi: 10.1016/j.compositesa.2021.106286. ISSN 1359-835X.
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Kurzfassung
This study presents an investigation into the sensitivity of CF-PPS thermoplastic composite material to automated fibre placement process parameters: specifically the surface temperature of the layup tool and the addition of simple tempering post-manufacturing. The impact of both are investigated using DSC and mechanical tests, with a thermal analysis of the as-delivered material acting as a reference. Reference material measurements show that secondary crystallinity can be produced by exposing the material to temperatures above the cold (heating) crystallisation temperature. This secondary crystallinity begins to dominate the polymer-inherent crystallinity as the tempering conditions begin to approach the material melting temperature. At the maximum temperature tested (260° C), secondary crystallinity accounts for over 70% of the total. Laminates produced using heated tools show a significant increase in both inter-laminar shear and perpendicular tensile properties with increasing temperature. Additionally, tempering samples is able to increase the polymer tensile strength by up to 32%.
elib-URL des Eintrags: | https://elib.dlr.de/144924/ | ||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||
Titel: | Moderation of thermoplastic composite crystallinity and mechanical properties through in situ manufacturing and post-manufacturing tempering: Part 1 - Mechanical characterisation | ||||||||||||||||
Autoren: |
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Datum: | April 2021 | ||||||||||||||||
Erschienen in: | Composites Part A: Applied Science and Manufacturing | ||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||
Open Access: | Nein | ||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||
Band: | 143 | ||||||||||||||||
DOI: | 10.1016/j.compositesa.2021.106286 | ||||||||||||||||
Verlag: | Elsevier | ||||||||||||||||
ISSN: | 1359-835X | ||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||
Stichwörter: | AFP, Thermoplastics, Crystallinity, Automated manufacturing | ||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||||||
HGF - Programmthema: | Komponenten und Systeme | ||||||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||
DLR - Forschungsgebiet: | L CS - Komponenten und Systeme | ||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Strukturwerkstoffe und Bauweisen | ||||||||||||||||
Standort: | Köln-Porz , Stuttgart | ||||||||||||||||
Institute & Einrichtungen: | Institut für Bauweisen und Strukturtechnologie > Bauteilgestaltung und Fertigungstechnologien Institut für Werkstoff-Forschung > Metallische Strukturen und hybride Werkstoffsysteme | ||||||||||||||||
Hinterlegt von: | Nowotny, Sebastian | ||||||||||||||||
Hinterlegt am: | 27 Okt 2021 12:27 | ||||||||||||||||
Letzte Änderung: | 27 Okt 2021 12:27 |
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