A rational study on the hydrothermal aging of AFP manufactured CF/polyetherketoneketone composites with in situ consolidation supported by acoustic emission inspection

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dc.authoridSas, Hatice S/0000-0002-5179-2509
dc.authoridSukur, Emine Feyza/0000-0003-2644-880X
dc.authoridESKIZEYBEK, VOLKAN/0000-0002-5373-0379
dc.contributor.authorSukur, Emine Feyza
dc.contributor.authorElmas, Sinem
dc.contributor.authorSeyyednourani, Mahsa
dc.contributor.authorEskizeybek, Volkan
dc.contributor.authorYildiz, Mehmet
dc.contributor.authorSas, Hatice S.
dc.date.accessioned2025-01-27T20:54:31Z
dc.date.available2025-01-27T20:54:31Z
dc.date.issued2022
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractIn this study, carbon fiber (CF)/polyetherketoneketone (PEKK) composites with 5% void content, manufactured via an in situ consolidated automated fiber placement (AFP) lay-up process, are aged in hot water at 70 degrees C for 30 days. Firstly, a deep understanding of the deterioration in the mechanical performance is developed with a comprehensive and complementary set of material characterization strategies, including (i) microstructural characterization with Fourier-transform infrared spectroscopy (FTIR), (ii) thermal characterization with differential scanning calorimetry (DSC), and (iii) dynamic mechanical analysis (DMA). The material characterization concurrently highlights the plasticization and post-crystallization phenomena after aging with changes in the peak densities with FTIR, formation of second glass transition temperature (T-g) in DSC and DMA, and drop in storage modulus, loss modulus, and tan delta (delta) amplitudes. Then, acoustic emission (AE) is utilized as an inspection tool to identify the damage mechanisms regarding the 6.5%, 5.2%, and 4% decrease in tensile strength, strain at failure and modulus, respectively, in a comparative manner. The AE findings, remarking the weakening of the fiber-matrix interface after aging, are validated with scanning electron microscopy analysis. This study introduces an aging process-induced damage mechanism triggered with inhomogeneous water absorption for AFP manufactured CF/PEKK composites with in situ consolidation.
dc.description.sponsorshipTurkiye Bilimsel ve Teknolojik Arastirma Kurumu [118C480, 118C043]; Scientific and Technological Research Council of Turkey
dc.description.sponsorshipTurkiye Bilimsel ve Teknolojik Arastirma Kurumu, Grant/Award Numbers: 118C480, 118C043; Scientific and Technological Research Council of Turkey
dc.identifier.doi10.1002/app.52480
dc.identifier.issn0021-8995
dc.identifier.issn1097-4628
dc.identifier.issue29
dc.identifier.scopus2-s2.0-85128864493
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1002/app.52480
dc.identifier.urihttps://hdl.handle.net/20.500.12428/26096
dc.identifier.volume139
dc.identifier.wosWOS:000787807500001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofJournal of Applied Polymer Science
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectageing
dc.subjectcomposites
dc.subjectthermoplastics
dc.titleA rational study on the hydrothermal aging of AFP manufactured CF/polyetherketoneketone composites with in situ consolidation supported by acoustic emission inspection
dc.typeArticle

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