Prediction of strength degradation of glass fiber under water environment using sub-critical crack growth model

Masahiro Kotani, Hiroyuki Kawada

    研究成果: Conference contribution

    抄録

    The mechanical properties of FRP are mainly dominated by the fiber-reinforcement and therefore practically influenced by the strength degradation of the glass fiber. In this paper, the strength degradation of embedded E-glass fiber in the single fiber composite (SFC) has been investigated under constant strain in water environment to represent the SCC of GFRP. The strength degradation of the embedded glass fiber was ascertained by fragmentation test after the constant strain test. It was clarified that the fiber strength degradation was to accelerate dramatically at elevated water temperature. Additionally, the degradation of the glass fiber strength has been quantified on the basis of microscopic SCC of the initial defects on the fiber surface using the sub-critical crack growth model. The proposed model showed good agreement with the fiber strength distribution from various experimental results.

    元の言語English
    ホスト出版物のタイトルAdvanced Composites for Efficiency and Environment - The US-Japan Conference on Composite Materials 2008, US-Japan 2008
    出版物ステータスPublished - 2008
    イベントUS-Japan Conference on Composite Materials 2008, US-Japan 2008 - Tokyo
    継続期間: 2008 6 62008 6 7

    Other

    OtherUS-Japan Conference on Composite Materials 2008, US-Japan 2008
    Tokyo
    期間08/6/608/6/7

    Fingerprint

    Glass fibers
    Crack propagation
    Degradation
    Water
    Fibers
    Fiber reinforced materials
    fiberglass
    Mechanical properties
    Defects
    Composite materials
    Temperature

    Keywords

      ASJC Scopus subject areas

      • Ceramics and Composites

      これを引用

      Kotani, M., & Kawada, H. (2008). Prediction of strength degradation of glass fiber under water environment using sub-critical crack growth model. : Advanced Composites for Efficiency and Environment - The US-Japan Conference on Composite Materials 2008, US-Japan 2008

      Prediction of strength degradation of glass fiber under water environment using sub-critical crack growth model. / Kotani, Masahiro; Kawada, Hiroyuki.

      Advanced Composites for Efficiency and Environment - The US-Japan Conference on Composite Materials 2008, US-Japan 2008. 2008.

      研究成果: Conference contribution

      Kotani, M & Kawada, H 2008, Prediction of strength degradation of glass fiber under water environment using sub-critical crack growth model. : Advanced Composites for Efficiency and Environment - The US-Japan Conference on Composite Materials 2008, US-Japan 2008. US-Japan Conference on Composite Materials 2008, US-Japan 2008, Tokyo, 08/6/6.
      Kotani M, Kawada H. Prediction of strength degradation of glass fiber under water environment using sub-critical crack growth model. : Advanced Composites for Efficiency and Environment - The US-Japan Conference on Composite Materials 2008, US-Japan 2008. 2008
      Kotani, Masahiro ; Kawada, Hiroyuki. / Prediction of strength degradation of glass fiber under water environment using sub-critical crack growth model. Advanced Composites for Efficiency and Environment - The US-Japan Conference on Composite Materials 2008, US-Japan 2008. 2008.
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      title = "Prediction of strength degradation of glass fiber under water environment using sub-critical crack growth model",
      abstract = "The mechanical properties of FRP are mainly dominated by the fiber-reinforcement and therefore practically influenced by the strength degradation of the glass fiber. In this paper, the strength degradation of embedded E-glass fiber in the single fiber composite (SFC) has been investigated under constant strain in water environment to represent the SCC of GFRP. The strength degradation of the embedded glass fiber was ascertained by fragmentation test after the constant strain test. It was clarified that the fiber strength degradation was to accelerate dramatically at elevated water temperature. Additionally, the degradation of the glass fiber strength has been quantified on the basis of microscopic SCC of the initial defects on the fiber surface using the sub-critical crack growth model. The proposed model showed good agreement with the fiber strength distribution from various experimental results.",
      keywords = "Fiber strength, GFRP, SCC, Water environment",
      author = "Masahiro Kotani and Hiroyuki Kawada",
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      T1 - Prediction of strength degradation of glass fiber under water environment using sub-critical crack growth model

      AU - Kotani, Masahiro

      AU - Kawada, Hiroyuki

      PY - 2008

      Y1 - 2008

      N2 - The mechanical properties of FRP are mainly dominated by the fiber-reinforcement and therefore practically influenced by the strength degradation of the glass fiber. In this paper, the strength degradation of embedded E-glass fiber in the single fiber composite (SFC) has been investigated under constant strain in water environment to represent the SCC of GFRP. The strength degradation of the embedded glass fiber was ascertained by fragmentation test after the constant strain test. It was clarified that the fiber strength degradation was to accelerate dramatically at elevated water temperature. Additionally, the degradation of the glass fiber strength has been quantified on the basis of microscopic SCC of the initial defects on the fiber surface using the sub-critical crack growth model. The proposed model showed good agreement with the fiber strength distribution from various experimental results.

      AB - The mechanical properties of FRP are mainly dominated by the fiber-reinforcement and therefore practically influenced by the strength degradation of the glass fiber. In this paper, the strength degradation of embedded E-glass fiber in the single fiber composite (SFC) has been investigated under constant strain in water environment to represent the SCC of GFRP. The strength degradation of the embedded glass fiber was ascertained by fragmentation test after the constant strain test. It was clarified that the fiber strength degradation was to accelerate dramatically at elevated water temperature. Additionally, the degradation of the glass fiber strength has been quantified on the basis of microscopic SCC of the initial defects on the fiber surface using the sub-critical crack growth model. The proposed model showed good agreement with the fiber strength distribution from various experimental results.

      KW - Fiber strength

      KW - GFRP

      KW - SCC

      KW - Water environment

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      M3 - Conference contribution

      BT - Advanced Composites for Efficiency and Environment - The US-Japan Conference on Composite Materials 2008, US-Japan 2008

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