Impact tensile properties and strength development mechanism of glass for reinforcement fiber

T. Kim, K. Oshima, Hiroyuki Kawada

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    In this study, impact tensile properties of E-glass were investigated by fiber bundle testing under a high strain rate. The impact tests were performed employing two types of experiments. One is the tension-type split Hopkinson pressure bar system, and the other is the universal high-speed tensile-testing machine. As the results, it was found that not only the tensile strength but also the fracture strain of E-glass fiber improved with the strain rate. The absorbed strain energy of this material significantly increased. It was also found that the degree of the strain rate dependency of E-glass fibers on the tensile strength was varied according to fiber diameter. As for the strain rate dependency of the glass fiber under tensile loading condition, change of the small crack-propagation behaviour was considered to clarify the development of the fiber strength. The tensile fiber strength was estimated by employing the numerical simulation based on the slow crack-growth model (SCG). Through the parametric study against the coefficient of the crack propagation rate, the numerical estimation value was obtained for the various testing conditions. It was concluded that the slow crack-growth behaviour in the glass fiber was an essential for the increase in the strength of this material.

    Original languageEnglish
    Article number012006
    JournalJournal of Physics: Conference Series
    Volume451
    Issue number1
    DOIs
    Publication statusPublished - 2013

    Fingerprint

    tensile properties
    E glass
    glass fibers
    reinforcement
    tensile strength
    strain rate
    fiber strength
    fibers
    glass
    crack propagation
    cracks
    impact tests
    test equipment
    bundles
    high speed
    mechanical properties
    coefficients
    simulation
    energy

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Impact tensile properties and strength development mechanism of glass for reinforcement fiber. / Kim, T.; Oshima, K.; Kawada, Hiroyuki.

    In: Journal of Physics: Conference Series, Vol. 451, No. 1, 012006, 2013.

    Research output: Contribution to journalArticle

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