Prediction of creep rupture in unidirectional composites

Jun Koyanagi, Fumio Ogawa, Hiroyuki Kawada

    研究成果: Conference contribution

    抄録

    This paper describes a creep rupture model that takes into account the interfacial debonding and its propagation around broken fibers in unidirectional fiber-reinforced polymers. The interfacial debonding is accompanied by fiber breaks under a longitudinal tensile load, and it causes the material property to decrease with increase of the interfacial debonding length. Also, there is a interaction between probability of fiber break and the growth of the interfacial debonding, eventually, the rate of the decrease of material properties is exponentially. In this study, the probability of the fiber break is formulated as a function of stress recovery length that has a time-dependency and the creep rupture strain is predicted as a function of the increase rate of the stress recovery length. Moreover, the creep behavior is predicted by using compliance component of the matrix as a function of time. It is assumed that when the composite strain reaches the time-dependent material rupture strain, the composite fails in creep rupture.

    元の言語English
    ホスト出版物のタイトルProceedings of the 2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics
    ページ1857-1863
    ページ数7
    出版物ステータスPublished - 2005
    イベント2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics - Portland, OR
    継続期間: 2005 6 72005 6 9

    Other

    Other2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics
    Portland, OR
    期間05/6/705/6/9

    Fingerprint

    Debonding
    Creep
    Fibers
    Composite materials
    Materials properties
    Recovery
    Polymers

    ASJC Scopus subject areas

    • Engineering(all)

    これを引用

    Koyanagi, J., Ogawa, F., & Kawada, H. (2005). Prediction of creep rupture in unidirectional composites. : Proceedings of the 2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics (pp. 1857-1863)

    Prediction of creep rupture in unidirectional composites. / Koyanagi, Jun; Ogawa, Fumio; Kawada, Hiroyuki.

    Proceedings of the 2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics. 2005. p. 1857-1863.

    研究成果: Conference contribution

    Koyanagi, J, Ogawa, F & Kawada, H 2005, Prediction of creep rupture in unidirectional composites. : Proceedings of the 2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics. pp. 1857-1863, 2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics, Portland, OR, 05/6/7.
    Koyanagi J, Ogawa F, Kawada H. Prediction of creep rupture in unidirectional composites. : Proceedings of the 2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics. 2005. p. 1857-1863
    Koyanagi, Jun ; Ogawa, Fumio ; Kawada, Hiroyuki. / Prediction of creep rupture in unidirectional composites. Proceedings of the 2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics. 2005. pp. 1857-1863
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