Direct observation of waviness formation in the consolidation of AS4-PEEK thermoplastic composites

    Research output: Contribution to conferencePaperpeer-review

    Abstract

    Waviness defects can occur during consolidation of a thermoplastic composite laminate. The formation of this waviness is investigated with an experimental setup, designed for consolidating a laminate using a glass plate. This enables direct observation of waviness formation during processing. It is found that waviness is formed in two stages: in the first place during melting of the laminate and secondly during the cooling phase between melt and crystallization. This research indicates that matrix shrinkage does not play a role in the formation of fiber waviness in AS4/PEEK during cooling. Together with the relevant factors affecting waviness formation from literature, this leaves residual stresses and tool shrinkage as the driving forces for waviness formation during press consolidation of AS4/PEEK laminates.
    Original languageEnglish
    Publication statusPublished - 2018
    EventSAMPE Europe 2018 - Southampton, United Kingdom
    Duration: 11 Sep 201813 Sep 2018

    Conference

    ConferenceSAMPE Europe 2018
    CountryUnited Kingdom
    CitySouthampton
    Period11/09/1813/09/18

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