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

*この研究の対応する著者

研究成果: Article査読

14 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)398-405
ページ数8
ジャーナルComposites Part A: Applied Science and Manufacturing
68
DOI
出版ステータスPublished - 2015 1

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 材料力学

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