Ｚａｎｃｈｏｒ強化ＣＦＲＰ積層材のモードＩ層間亀裂進展挙動の実験的評価

DOI Web Site 被引用文献2件 参考文献30件

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  • Experimental Characterization of Interlaminar Fracture Behavior in Zanchor Reinforced CFRP Laminates under Mode I Loading
  • Zanchor強化CFRP積層材のモードI層間き裂進展挙動の実験的評価
  • Zanchor キョウカ CFRP セキソウザイ ノ モード Iソウカン キレツ シンテン キョドウ ノ ジッケンテキ ヒョウカ

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The mode I interlaminar fracture behavior of the composite laminates reinforced with Zanchor process which is a novel through-the-thickness reinforcement technique developed by Mitsubishi Heavy Industries and Shikibo, was studied on the basis of the experimental results using DCB (Double Cantilever Beam) specimens. The effects of the Zanchor reinforcement on the macroscopic fracture toughness and microscopic fracture morphology were mainly focused on. Experimental results demonstrated that the mode I interlaminar fracture toughness was remarkably improved by the Zanchor reinforcement, where the fracture toughness, GIC, increased almost linearly with the Zanchor density, Z. In addition, the fracture toughness, GIC, increased drastically during the early stage of crack growth in the Zanchor reinforced composites, where the interlaminar crack propagated stably accompanied by a large amount of fiber bridgings. The above results suggested that the increase in mode I fracture toughness was the consequence of the fiber bridgings induced by the Zanchor process. The fracture toughness, GIC, could be precisely calculated by using the chord compliance, Cchord, though obvious nonlinearity was observed in the load-displacement responses of DCB specimens.

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