Time-dependent out-of-plane deformation of UD-CFRP in humid environment

Yoshihiko Arao, Jun Koyanagi, Shin Utsunomiya, Hiroyuki Kawada

    Research output: Contribution to journalArticle

    15 Citations (Scopus)

    Abstract

    Time-dependent out-of-plane deformation of UD-CFRP (unidirectional CFRP laminate) caused by subjection to a humid environment was examined and analyzed. The UD-CFRP plate showed unpredictable geometrical variation with time in a humid environment, like asymmetric materials. The unpredictability was caused by non-uniform fiber distribution in the thickness direction of the specimen. A three-dimensional diffusion-stress coupling analysis considering the non-uniform fiber distribution was conducted based on finite element analysis. The analytical results showed very good agreement with the experimental results. Furthermore, the relationship between the non-uniform fiber distribution and the out-of-plane deformation with time was obtained quantitatively.

    Original languageEnglish
    Pages (from-to)1720-1725
    Number of pages6
    JournalComposites Science and Technology
    Volume69
    Issue number11-12
    DOIs
    Publication statusPublished - 2009 Sep

    Fingerprint

    Carbon fiber reinforced plastics
    Laminates
    Fibers
    Finite element method
    carbon fiber reinforced plastic

    Keywords

    • A. Polymer-matrix composites (PMCs)
    • B. Hygrothermal effect
    • C. Deformation
    • C. Finite element analysis (FEA)
    • C. Laminate

    ASJC Scopus subject areas

    • Engineering(all)
    • Ceramics and Composites

    Cite this

    Time-dependent out-of-plane deformation of UD-CFRP in humid environment. / Arao, Yoshihiko; Koyanagi, Jun; Utsunomiya, Shin; Kawada, Hiroyuki.

    In: Composites Science and Technology, Vol. 69, No. 11-12, 09.2009, p. 1720-1725.

    Research output: Contribution to journalArticle

    Arao, Yoshihiko ; Koyanagi, Jun ; Utsunomiya, Shin ; Kawada, Hiroyuki. / Time-dependent out-of-plane deformation of UD-CFRP in humid environment. In: Composites Science and Technology. 2009 ; Vol. 69, No. 11-12. pp. 1720-1725.
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