Prediction of initiation of transverse cracks in cross-ply CFRP laminates under fatigue loading by fatigue properties of unidirectional CFRP in 90° direction

Atsushi Hosoi, Shigeyoshi Sakuma, Yuzo Fujita, Hiroyuki Kawada

    Research output: Contribution to journalArticle

    10 Citations (Scopus)

    Abstract

    A fatigue life to the initiation of transverse cracks in cross-ply carbon fiber-reinforced plastic (CFRP) laminates has been predicted using properties of the fatigue strength of unidirectional CFRP in the 90° direction. In the experiments, unidirectional [90]12 laminates were used to obtain a plot of maximum stress versus number of cycles to breaking, and two types of cross-ply laminates of [0/904]S and [0/906]S were used to evaluate the initiation and multiplication of transverse cracks under fatigue loading. Transverse cracks were studied by optical microscopy and soft X-ray photography. Analytical and experimental results showed good agreement, and the fatigue life for transverse crack initiation in cross-ply laminates was predicted successfully from the fatigue strength properties of the unidirectional CFRP in the 90° direction. The prediction results showed a conservative fatigue life than the experimental results.

    Original languageEnglish
    Pages (from-to)398-405
    Number of pages8
    JournalComposites Part A: Applied Science and Manufacturing
    Volume68
    DOIs
    Publication statusPublished - 2015

    Fingerprint

    Plastic laminates
    Carbon fiber reinforced plastics
    Fatigue of materials
    Laminates
    Cracks
    Radiography
    Crack initiation
    Optical microscopy
    carbon fiber reinforced plastic
    Direction compound
    Experiments
    Fatigue strength

    Keywords

    • A. Polymer-matrix composites (PMCs)
    • B. Fatigue
    • B. Transverse cracking
    • C. Laminate mechanics

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Mechanics of Materials

    Cite this

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    title = "Prediction of initiation of transverse cracks in cross-ply CFRP laminates under fatigue loading by fatigue properties of unidirectional CFRP in 90° direction",
    abstract = "A fatigue life to the initiation of transverse cracks in cross-ply carbon fiber-reinforced plastic (CFRP) laminates has been predicted using properties of the fatigue strength of unidirectional CFRP in the 90° direction. In the experiments, unidirectional [90]12 laminates were used to obtain a plot of maximum stress versus number of cycles to breaking, and two types of cross-ply laminates of [0/904]S and [0/906]S were used to evaluate the initiation and multiplication of transverse cracks under fatigue loading. Transverse cracks were studied by optical microscopy and soft X-ray photography. Analytical and experimental results showed good agreement, and the fatigue life for transverse crack initiation in cross-ply laminates was predicted successfully from the fatigue strength properties of the unidirectional CFRP in the 90° direction. The prediction results showed a conservative fatigue life than the experimental results.",
    keywords = "A. Polymer-matrix composites (PMCs), B. Fatigue, B. Transverse cracking, C. Laminate mechanics",
    author = "Atsushi Hosoi and Shigeyoshi Sakuma and Yuzo Fujita and Hiroyuki Kawada",
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    TY - JOUR

    T1 - Prediction of initiation of transverse cracks in cross-ply CFRP laminates under fatigue loading by fatigue properties of unidirectional CFRP in 90° direction

    AU - Hosoi, Atsushi

    AU - Sakuma, Shigeyoshi

    AU - Fujita, Yuzo

    AU - Kawada, Hiroyuki

    PY - 2015

    Y1 - 2015

    N2 - A fatigue life to the initiation of transverse cracks in cross-ply carbon fiber-reinforced plastic (CFRP) laminates has been predicted using properties of the fatigue strength of unidirectional CFRP in the 90° direction. In the experiments, unidirectional [90]12 laminates were used to obtain a plot of maximum stress versus number of cycles to breaking, and two types of cross-ply laminates of [0/904]S and [0/906]S were used to evaluate the initiation and multiplication of transverse cracks under fatigue loading. Transverse cracks were studied by optical microscopy and soft X-ray photography. Analytical and experimental results showed good agreement, and the fatigue life for transverse crack initiation in cross-ply laminates was predicted successfully from the fatigue strength properties of the unidirectional CFRP in the 90° direction. The prediction results showed a conservative fatigue life than the experimental results.

    AB - A fatigue life to the initiation of transverse cracks in cross-ply carbon fiber-reinforced plastic (CFRP) laminates has been predicted using properties of the fatigue strength of unidirectional CFRP in the 90° direction. In the experiments, unidirectional [90]12 laminates were used to obtain a plot of maximum stress versus number of cycles to breaking, and two types of cross-ply laminates of [0/904]S and [0/906]S were used to evaluate the initiation and multiplication of transverse cracks under fatigue loading. Transverse cracks were studied by optical microscopy and soft X-ray photography. Analytical and experimental results showed good agreement, and the fatigue life for transverse crack initiation in cross-ply laminates was predicted successfully from the fatigue strength properties of the unidirectional CFRP in the 90° direction. The prediction results showed a conservative fatigue life than the experimental results.

    KW - A. Polymer-matrix composites (PMCs)

    KW - B. Fatigue

    KW - B. Transverse cracking

    KW - C. Laminate mechanics

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    U2 - 10.1016/j.compositesa.2014.10.022

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