Effect of Lamination Thickness on the Damage Bahavior in FW-CFRP Composite Pipes Subjected to Out-of Plane Loading

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  • KOBAYASHI Satoshi
    Graduate School of Science and Engineering, Tokyo Metropolitan University
  • KAWAHARA Mari
    Graduate School of Science and Engineering, Tokyo Metropolitan University
  • KOSAKA Tatsuro
    Graduate School of Engineering, Osaka City University

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Other Title
  • 面外負荷を受けるＦＷ‐ＣＦＲＰ複合パイプの損傷挙動に及ぼす積層厚さの影響
  • 面外負荷を受けるFW-CFRP複合パイプの損傷挙動に及ぼす積層厚さの影響
  • メンガイ フカ オ ウケル FW CFRP フクゴウ パイプ ノ ソンショウ キョドウ ニ オヨボス セキソウ アツサ ノ エイキョウ

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Abstract

In order to investigate effects of lamination thickness on the damage progress due to out-of-plane loading in FW-CFRP composite pipes, impact and quasi-static indentation tests were conducted. Absorbed energy decreased with number of plies and saturated. Damages, such as indentations, splittings and fiber breakages, occurred around a loading point. Propagation of fiber breakages and splittings is larger in specimen after quasi-static indentation tests than those of impact. These damages were localized with number of plies. Residual deflections of aluminum liners were also suppressed with number of plies. Residual burst strength ratio increased more than 70% for the absorbed energy ratio of less than 10 J/m.

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