Characterization of Cryogenically-Cycled Autoclaved and ATL CF/PEEK Laminates using 3-D X-Ray CT

David M. Grogan, Sean B. Leen, Conchur O Brádaigh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Non-destructive testing (NDT) techniques including optical microscopy and 3-D X-ray computed tomography (CT) are used to characterise and compare the defect content and damage formation in cryogenically cycled CF/PEEK specimens manufactured using two distinct processing methods: autoclave and automated tape laying (ATL). Significant differences in void volume content as well as transverse microcrack density are observed in the specimens post-cycling, with the presence of large air gaps in the ATL specimens likely contributing to the observed damage accumulation behaviour.
Original languageEnglish
Title of host publication20th International Conference on Composite Materials
Publication statusPublished - 31 Jul 2015

Keywords

  • Thermoplastic composites, Automated Tape Laying (ATL), Cryogenic cycling, Non-Destructive Testing (NDT), Defects

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