Effect of moisture absorption on dimensional stability in carbon/epoxy composites

Yoshihiko Arao, Jun Koyanagi, Hiroshi Hatta, Yuichiro Aoki, Hiroyuki Kawada

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

    1 Citation (Scopus)

    Abstract

    In order to quantify the dimensional stability in CFRPs at humidity environment, the water diffusion considering an anisotropy and moisture expansion behavior are investigated. Water diffusivity coefficients were determined by measuring the specimen weight during the moisture absorption test. The diffusivity coefficients of three main axial directions are obtained from three shapes specimen's result and solving simultaneous equations. A 3-dimensional locator using laser-displacement measurement was employed to measure micro deformation of the CFRP specimens caused by moisture absorption. The curvature of surface was observed due to the distribution of moisture contents. The coupling analysis which includes mechanical deformation and thermal diffusion was conducted. The numerical results are in good agreement with the test results.

    Original languageEnglish
    Title of host publicationICCM International Conferences on Composite Materials
    Publication statusPublished - 2007
    Event16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace" - Kyoto
    Duration: 2007 Jul 82007 Jul 13

    Other

    Other16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace"
    CityKyoto
    Period07/7/807/7/13

    Keywords

    • Dimensional stability
    • Polymer-matrix composites (PMC)
    • Water diffusion

    ASJC Scopus subject areas

    • Engineering(all)
    • Ceramics and Composites

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  • Cite this

    Arao, Y., Koyanagi, J., Hatta, H., Aoki, Y., & Kawada, H. (2007). Effect of moisture absorption on dimensional stability in carbon/epoxy composites. In ICCM International Conferences on Composite Materials