High-cycle fatigue characteristics of quasi-isotropic CFRP laminates

Atsushi Hosoi, Yoshihiko Arao, Hirokazu Karasawa, Hiroyuki Kawada

    Research output: Contribution to journalArticle

    24 Citations (Scopus)

    Abstract

    High-cycle fatigue characteristics of quasi-isotropic carbon fiber reinforced plastic (CFRP) laminates [-45/0/45/90]s up to 108 cycles were investigated. To assess the fatigue behavior in the high-cycle region, fatigue tests were conducted at a frequency of 100 Hz, since it is difficult to investigate the fatigue characteristics in high-cycle at 5 Hz. Then, the damage behavior of the specimen was observed with a microscope, soft X-ray photography and a 3D ultrasonic inspection system. In this study, to evaluate quantitative characteristics of both transverse crack propagation and delamination growth in the high-cycle region, the energy release rate associated with damage growth in the width direction was calculated. Transverse crack propagation and delamination growth in the width direction were evaluated based on a modified Paris law approach. The results revealed that transverse crack propagation delayed under the test conditions of less than σ

    Original languageEnglish
    Pages (from-to)151-166
    Number of pages16
    JournalAdvanced Composite Materials: The Official Journal of the Japan Society of Composite Materials
    Volume16
    Issue number2
    DOIs
    Publication statusPublished - 2007 Mar 1

    Fingerprint

    Plastic laminates
    Carbon fiber reinforced plastics
    Fatigue of materials
    Crack propagation
    Delamination
    Energy release rate
    Radiography
    Microscopes
    Inspection
    Ultrasonics
    carbon fiber reinforced plastic
    Direction compound

    Keywords

    • Delamination
    • Energy release rate
    • High-cycle fatigue
    • Polymer-matrix composites
    • Transverse cracking

    ASJC Scopus subject areas

    • Ceramics and Composites

    Cite this

    High-cycle fatigue characteristics of quasi-isotropic CFRP laminates. / Hosoi, Atsushi; Arao, Yoshihiko; Karasawa, Hirokazu; Kawada, Hiroyuki.

    In: Advanced Composite Materials: The Official Journal of the Japan Society of Composite Materials, Vol. 16, No. 2, 01.03.2007, p. 151-166.

    Research output: Contribution to journalArticle

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