The strength degradation mechanism of single fiber composite under water environment-prediction method of residual fiber strength using crack propagation model

Masahiro Kotani, Hiroyuki Kawada

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

    1 Citation (Scopus)

    Abstract

    The material properties of fiber reinforced plastics (FRP) are strongly influenced by reinforcement fiber, so the strength degradation of the reinforcement is an important issue from a view point of long-term durability. For such purpose, present research focuses on the fiber strength degradation behavior of single fiber composite (SFC) specimen to quantify the strength degradation. The constant strain tests using the SFC specimen in water environment at various temperatures were conducted to reproduce the SCC of GFRP. Fragmentation test was conducted after the constant strain test, and the distribution of the residual strength of embedded fiber was obtained. It was clarified that the fiber strength degradation was to progress with higher strain, with time and was to accelerate dramatically at higher 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.

    Original languageEnglish
    Title of host publicationProgress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008
    Pages135-138
    Number of pages4
    Publication statusPublished - 2008
    Event6th Asian-Australasian Conference on Composite Materials: Progress of Composites 2008 in Asia and Australasia, ACCM 2008 - Kumamoto, Kyushu
    Duration: 2008 Sep 232008 Sep 26

    Other

    Other6th Asian-Australasian Conference on Composite Materials: Progress of Composites 2008 in Asia and Australasia, ACCM 2008
    CityKumamoto, Kyushu
    Period08/9/2308/9/26

    Fingerprint

    Crack propagation
    Degradation
    Water
    Fibers
    Composite materials
    Fiber reinforced plastics
    Fiber reinforced materials
    Glass fibers
    Materials properties
    Reinforcement
    Durability
    Temperature
    Defects

    Keywords

    • Fiber Strength
    • GFRP
    • SCC
    • Water Environment

    ASJC Scopus subject areas

    • Ceramics and Composites

    Cite this

    Kotani, M., & Kawada, H. (2008). The strength degradation mechanism of single fiber composite under water environment-prediction method of residual fiber strength using crack propagation model. In Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008 (pp. 135-138)

    The strength degradation mechanism of single fiber composite under water environment-prediction method of residual fiber strength using crack propagation model. / Kotani, Masahiro; Kawada, Hiroyuki.

    Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008. 2008. p. 135-138.

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

    Kotani, M & Kawada, H 2008, The strength degradation mechanism of single fiber composite under water environment-prediction method of residual fiber strength using crack propagation model. in Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008. pp. 135-138, 6th Asian-Australasian Conference on Composite Materials: Progress of Composites 2008 in Asia and Australasia, ACCM 2008, Kumamoto, Kyushu, 08/9/23.
    Kotani M, Kawada H. The strength degradation mechanism of single fiber composite under water environment-prediction method of residual fiber strength using crack propagation model. In Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008. 2008. p. 135-138
    Kotani, Masahiro ; Kawada, Hiroyuki. / The strength degradation mechanism of single fiber composite under water environment-prediction method of residual fiber strength using crack propagation model. Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008. 2008. pp. 135-138
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