Evaluation of the mechanical properties of PMC interface using slice compression test - analysis of transfer mechanism of interfacial shear stress

Norihiko Taniguchi, Kunihiro Toge, Hiroyuki Kawada

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    Properties of the fiber/matrix interface in SiO2/epoxy and SiC/epoxy composite are investigated using the slice compression test (SCT) for the single fiber, where the specimen is loaded and unloaded between a plate which has different mechanical properties. It is found that the interfacial debonding proceeds from the polished surface at a soft plate side and that the fiber protrusion occurs after unloading. The fiber-protrusion length is directly measured at each applied stress level using a scanning electron microscope. Interfacial shear-sliding stress is obtained based on the constant shear-sliding stress analysis employing the obtained protrusion length. It is demonstrated that the value of interfacial shear-sliding stress shows good agreement with that obtained from another technique, the push-out test, on the same system. The relation between the fiber-protrusion length and applied stress is proportional to a certain extent. From this result, it is analytically pointed out that the applied stress has a limiting value in this SCT because of Poisson's effect. Also, two interfacial debonding criteria, which are determined analytically for the PMC, are discussed.

    Original languageEnglish
    Pages (from-to)349-361
    Number of pages13
    JournalComposite Interfaces
    Volume7
    Issue number5-6
    DOIs
    Publication statusPublished - 2001

    Fingerprint

    compression tests
    shear stress
    Shear stress
    mechanical properties
    Mechanical properties
    Fibers
    evaluation
    sliding
    fibers
    Debonding
    shear
    fiber-matrix interfaces
    stress analysis
    unloading
    Unloading
    Stress analysis
    Compaction
    Electron microscopes
    electron microscopes
    Scanning

    Keywords

    • Debonding
    • Energy release rate
    • Interfacial shear-sliding stress
    • Poisson's effect
    • Slice compression test

    ASJC Scopus subject areas

    • Ceramics and Composites

    Cite this

    Evaluation of the mechanical properties of PMC interface using slice compression test - analysis of transfer mechanism of interfacial shear stress. / Taniguchi, Norihiko; Toge, Kunihiro; Kawada, Hiroyuki.

    In: Composite Interfaces, Vol. 7, No. 5-6, 2001, p. 349-361.

    Research output: Contribution to journalArticle

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