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Influence of Process Parameters and Material Aging on the Adhesion of Prepreg in AFP Processes

Nguyen, Duy Chinh und Krombholz, Christian (2016) Influence of Process Parameters and Material Aging on the Adhesion of Prepreg in AFP Processes. ECCM17, 2016-06-26 - 2016-06-30, München, Deutschland.

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Kurzfassung

In order to increase the quality of CFRP parts, the manufacturing process could be customized to the current condition of the used prepreg material. For that reason, a long term experiment was executed here, where the change of the tack due to material aging at room temperature and variation of material temperature was analyzed. With the existing requirements, among other things, to simulate a real automated fiber placement (AFP) process, a lap shear test was found to be appropriate to measure the tack between two prepreg plies. First results show, that the tack increases dramatically if the temperature of the material also increases. Regarding material aging at room temperature, without heating the material, the tack was constant for a long time and then started to decrease. If the material was heated during the automated layup, the tack did not decrease but surprisingly increased constantly for more than ten days, before it started to decrease. This unexpected behavior could result from the increasing degree of cure which leads to an increase of the viscosity of the resin.

elib-URL des Eintrags:https://elib.dlr.de/106624/
Dokumentart:Konferenzbeitrag (Poster)
Titel:Influence of Process Parameters and Material Aging on the Adhesion of Prepreg in AFP Processes
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Nguyen, Duy ChinhChinh.Nguyen (at) dlr.dehttps://orcid.org/0000-0002-5894-9986NICHT SPEZIFIZIERT
Krombholz, ChristianChristian.Krombholz (at) dlr.dehttps://orcid.org/0000-0002-1802-4110NICHT SPEZIFIZIERT
Datum:2016
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:automated fiber placement, AFP, prepreg, tack, lap shear test
Veranstaltungstitel:ECCM17
Veranstaltungsort:München, Deutschland
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:26 Juni 2016
Veranstaltungsende:30 Juni 2016
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Flugzeuge
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Aircraft Research
DLR - Teilgebiet (Projekt, Vorhaben):L - Strukturen und Werkstoffe (alt)
Standort: Stade
Institute & Einrichtungen:Institut für Faserverbundleichtbau und Adaptronik
Hinterlegt von: Nguyen, Chinh Duy
Hinterlegt am:10 Nov 2016 23:58
Letzte Änderung:24 Apr 2024 20:11

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