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2D microstructural modeling of transverse cracking during pyrolysis process of carbon fiber reinforced plastics

Shi, Yuan und Jain, Neraj (2020) 2D microstructural modeling of transverse cracking during pyrolysis process of carbon fiber reinforced plastics. 44th International Conference and Exposition on Advanced Ceramics and Composites (ICACC), 2020-01-26 - 2020-01-31, Daytona Beach, USA.

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Kurzfassung

During the manufacturing process of carbon fiber based C/C-SiC composites, the phenolic resin of prepreg is converted to carbon through high temperature pyrolysis treatment. This step induces a high amount of porosity within the microstructure. The pore morphology varies from fine pores throughout the composite up to large crack channels with block-like, pretty dense C/C fiber matrix areas. The different crack formations during pyrolysis strongly depend on the fiber/matrix interface strength and temperature. In the present study, the formation of crack pattern is simulated in a FE-model with consideration of effects of fiber/matrix interface strength, fiber volume fraction, temperature change and other essential microstructural properties. The presented models are successfully able to simulate the material behavior and the consequent generation of cracks during pyrolysis process. Microstructure of the material has been then analyzed and compared with simulation results with the help of image segmentation techniques using Python. Based on the crack area distribution obtained from the SEM-analysis, microstructures can now be compared qualitatively as well as quantitatively.

elib-URL des Eintrags:https://elib.dlr.de/134288/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:2D microstructural modeling of transverse cracking during pyrolysis process of carbon fiber reinforced plastics
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Shi, Yuanyuan.shi (at) dlr.dehttps://orcid.org/0000-0002-4210-9069NICHT SPEZIFIZIERT
Jain, NerajNeraj.Jain (at) dlr.dehttps://orcid.org/0000-0002-7853-1894NICHT SPEZIFIZIERT
Datum:Januar 2020
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:modelling, cracking, pyrolysis, image analysis
Veranstaltungstitel:44th International Conference and Exposition on Advanced Ceramics and Composites (ICACC)
Veranstaltungsort:Daytona Beach, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:26 Januar 2020
Veranstaltungsende:31 Januar 2020
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: Stuttgart
Institute & Einrichtungen:Institut für Bauweisen und Strukturtechnologie > Keramische Verbundstrukturen
Hinterlegt von: Shi, Dr.-Ing. Yuan
Hinterlegt am:03 Mär 2020 10:01
Letzte Änderung:14 Jun 2024 11:52

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