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

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

    研究成果: Conference contribution

    2 引用 (Scopus)

    抄録

    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.

    元の言語English
    ホスト出版物のタイトルICCM International Conferences on Composite Materials
    出版物ステータスPublished - 2007
    イベント16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace" - Kyoto
    継続期間: 2007 7 82007 7 13

    Other

    Other16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace"
    Kyoto
    期間07/7/807/7/13

    Fingerprint

    Dimensional stability
    Moisture
    Carbon
    Carbon fiber reinforced plastics
    Composite materials
    Displacement measurement
    Thermal diffusion
    Water
    Atmospheric humidity
    Anisotropy
    Lasers
    carbon fiber reinforced plastic

    ASJC Scopus subject areas

    • Engineering(all)
    • Ceramics and Composites

    これを引用

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

    Effect of moisture absorption on dimensional stability in carbon/epoxy composites. / Arao, Yoshihiko; Koyanagi, Jun; Hatta, Hiroshi; Aoki, Yuichiro; Kawada, Hiroyuki.

    ICCM International Conferences on Composite Materials. 2007.

    研究成果: Conference contribution

    Arao, Y, Koyanagi, J, Hatta, H, Aoki, Y & Kawada, H 2007, Effect of moisture absorption on dimensional stability in carbon/epoxy composites. : ICCM International Conferences on Composite Materials. 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace", Kyoto, 07/7/8.
    Arao Y, Koyanagi J, Hatta H, Aoki Y, Kawada H. Effect of moisture absorption on dimensional stability in carbon/epoxy composites. : ICCM International Conferences on Composite Materials. 2007
    Arao, Yoshihiko ; Koyanagi, Jun ; Hatta, Hiroshi ; Aoki, Yuichiro ; Kawada, Hiroyuki. / Effect of moisture absorption on dimensional stability in carbon/epoxy composites. ICCM International Conferences on Composite Materials. 2007.
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    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.",
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    AU - Arao, Yoshihiko

    AU - Koyanagi, Jun

    AU - Hatta, Hiroshi

    AU - Aoki, Yuichiro

    AU - Kawada, Hiroyuki

    PY - 2007

    Y1 - 2007

    N2 - 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.

    AB - 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.

    KW - Dimensional stability

    KW - Polymer-matrix composites (PMC)

    KW - Water diffusion

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