An experimental implication of long-term hot-wet-aged carbon fiber/polyether ketone ketone composites: The impact of automated fiber placement process parameters and process-induced defects

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dc.authorid0000-0002-5373-0379en_US
dc.authorscopusid37063115900en_US
dc.authorwosidL-2187-2016en_US
dc.contributor.authorŞükür, Emine Feyza
dc.contributor.authorElmas, Sinem
dc.contributor.authorEskizeybek, Volkan
dc.contributor.authorSas, Hatice S.
dc.contributor.authorYıldız, Mehmet
dc.date.accessioned2023-08-01T06:32:50Z
dc.date.available2023-08-01T06:32:50Z
dc.date.issued2023en_US
dc.departmentFakülteler, Mühendislik Fakültesi, Malzeme Bilimi ve Mühendisliği Bölümü
dc.description.abstractDuring the service life of aerospace-grade composites, process parameters and process-induced defects may become crucial. Most studies in this field have mainly focused on the relationship between process-induced defects and mechanical performance. However, the potential impact of process parameters and process-induced defects on the service life of composites serving under severe service conditions has received little attention. In this work, the effects of hydrothermal conditioning on the mechanical performance of carbon fiber/polyether ketone ketone (CF/PEKK) composites are examined, along with the correlation between automated fiber placement (AFP) process parameters and process-induced defects. For this, gap and overlap defects integrated CF/PEKK laminates were exposed to a long-term (90 days) hot-wet aging environment to simulate the actual service conditions. Defect-induced composite samples reached saturation point at the end of 30 days with a mass gain of 0.2 wt%. The aging process resulted in an increase in the degree of crystallization by almost 14% without a change in the chemical structure, indicating the postcrystallization of the PEKK matrix. Even though the thermo-mechanical performance diminished (~25%) with the aging process, storage modulus was slightly affected by process parameters and process-induced defects. Considering the flexural and shear test results after the aging process, the impact of gap and overlap defects on the service life of AFP composites can be minimized with higher compaction forces (600 N) and lower lay-up speeds (0.1 m/s).en_US
dc.identifier.citationŞükür, E. F., Elmas, S., Eskizeybek, V., Sas, H. S., & Yıldız, M. (2023). An experimental implication of long‐term hot‐wet‐aged carbon fiber/polyether ketone ketone composites: The impact of automated fiber placement process parameters and process‐induced defects. Journal of Applied Polymer Science, 140(29). https://doi.org/10.1002/app.54076en_US
dc.identifier.doi10.1002/app.54076
dc.identifier.issn0021-8995
dc.identifier.issn1097-4628
dc.identifier.issue29en_US
dc.identifier.scopus2-s2.0-85159079190
dc.identifier.urihttps://doi.org/10.1002/app.54076
dc.identifier.urihttps://hdl.handle.net/20.500.12428/4467
dc.identifier.volume140en_US
dc.identifier.wosWOS:000986615200001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorEskizeybek, Volkan
dc.language.isoen
dc.publisherJohn Wiley and Sons Incen_US
dc.relation.ecinfo:eu-repo/grantAgreement/TUBITAK/SOBAG/118C480
dc.relation.ispartofJournal of Applied Polymer Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/us/*
dc.subjectAutomated fiber placement (AFP)en_US
dc.subjectHydrothermal agingen_US
dc.subjectProcess-induced defectsen_US
dc.subjectThermoplastic compositesen_US
dc.titleAn experimental implication of long-term hot-wet-aged carbon fiber/polyether ketone ketone composites: The impact of automated fiber placement process parameters and process-induced defects
dc.typeArticle

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