Fatigue life prediction of thick CFRP laminates with toughnened interlaminar layers in the out-of-plane direction at different stress ratio

Atsushi Hosoi, Shiwon Tsuge, Sen Seki, Yuzo Fujita, Ichiro Taketa, Hiroyuki Kawada

    研究成果: Conference contribution

    抄録

    The fatigue life of thick carbon fiber reinforced plastic (CFRP) laminates with toughened interlaminar layers in the out-of-plane direction was evaluated at different stress ratios. The spool shaped specimens were cut out the unidirectional thick CFRP laminates which pile up 88 plies of the prepreg with toughened interlaminar layer, T800S/3900-2B. The fatigue tests were conducted under the stress ratios of R = 0.1, -1, -3 and -6 to evaluate the effect of the stress ratio. As the results of the fatigue tests, the fatigue life of the specimens became shorter as the stress ratio became smaller, i.e. as the absolute values of the compressive stress became higher. It was found that the fatigue properties of the CFRP laminates in the out-of-plane direction are affected by the stress amplitude from the experimental results. In addition, the fatigue life under the different stress ratio was evaluated equivalently using the proposed model, modified H-κ model, which considers the strain energy. The analytical results showed good agreement with experimental results. In addition, the fatigue properties of the thick CFRP laminates in the out-of-plane direction were evaluated with the constant fatigue life diagram derived from the proposed model.

    元の言語English
    ホスト出版物のタイトルECCM 2016 - Proceeding of the 17th European Conference on Composite Materials
    出版者European Conference on Composite Materials, ECCM
    ISBN(電子版)9783000533877
    出版物ステータスPublished - 2016
    イベント17th European Conference on Composite Materials, ECCM 2016 - Munich, Germany
    継続期間: 2016 6 262016 6 30

    Other

    Other17th European Conference on Composite Materials, ECCM 2016
    Germany
    Munich
    期間16/6/2616/6/30

    Fingerprint

    Plastic laminates
    Carbon fiber reinforced plastics
    Fatigue of materials
    Reels
    Direction compound
    carbon fiber reinforced plastic
    Strain energy
    Compressive stress
    Piles

    Keywords

      ASJC Scopus subject areas

      • Ceramics and Composites

      これを引用

      Hosoi, A., Tsuge, S., Seki, S., Fujita, Y., Taketa, I., & Kawada, H. (2016). Fatigue life prediction of thick CFRP laminates with toughnened interlaminar layers in the out-of-plane direction at different stress ratio. : ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials European Conference on Composite Materials, ECCM.

      Fatigue life prediction of thick CFRP laminates with toughnened interlaminar layers in the out-of-plane direction at different stress ratio. / Hosoi, Atsushi; Tsuge, Shiwon; Seki, Sen; Fujita, Yuzo; Taketa, Ichiro; Kawada, Hiroyuki.

      ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials. European Conference on Composite Materials, ECCM, 2016.

      研究成果: Conference contribution

      Hosoi, A, Tsuge, S, Seki, S, Fujita, Y, Taketa, I & Kawada, H 2016, Fatigue life prediction of thick CFRP laminates with toughnened interlaminar layers in the out-of-plane direction at different stress ratio. : ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials. European Conference on Composite Materials, ECCM, 17th European Conference on Composite Materials, ECCM 2016, Munich, Germany, 16/6/26.
      Hosoi A, Tsuge S, Seki S, Fujita Y, Taketa I, Kawada H. Fatigue life prediction of thick CFRP laminates with toughnened interlaminar layers in the out-of-plane direction at different stress ratio. : ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials. European Conference on Composite Materials, ECCM. 2016
      Hosoi, Atsushi ; Tsuge, Shiwon ; Seki, Sen ; Fujita, Yuzo ; Taketa, Ichiro ; Kawada, Hiroyuki. / Fatigue life prediction of thick CFRP laminates with toughnened interlaminar layers in the out-of-plane direction at different stress ratio. ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials. European Conference on Composite Materials, ECCM, 2016.
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      abstract = "The fatigue life of thick carbon fiber reinforced plastic (CFRP) laminates with toughened interlaminar layers in the out-of-plane direction was evaluated at different stress ratios. The spool shaped specimens were cut out the unidirectional thick CFRP laminates which pile up 88 plies of the prepreg with toughened interlaminar layer, T800S/3900-2B. The fatigue tests were conducted under the stress ratios of R = 0.1, -1, -3 and -6 to evaluate the effect of the stress ratio. As the results of the fatigue tests, the fatigue life of the specimens became shorter as the stress ratio became smaller, i.e. as the absolute values of the compressive stress became higher. It was found that the fatigue properties of the CFRP laminates in the out-of-plane direction are affected by the stress amplitude from the experimental results. In addition, the fatigue life under the different stress ratio was evaluated equivalently using the proposed model, modified H-κ model, which considers the strain energy. The analytical results showed good agreement with experimental results. In addition, the fatigue properties of the thick CFRP laminates in the out-of-plane direction were evaluated with the constant fatigue life diagram derived from the proposed model.",
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      AU - Hosoi, Atsushi

      AU - Tsuge, Shiwon

      AU - Seki, Sen

      AU - Fujita, Yuzo

      AU - Taketa, Ichiro

      AU - Kawada, Hiroyuki

      PY - 2016

      Y1 - 2016

      N2 - The fatigue life of thick carbon fiber reinforced plastic (CFRP) laminates with toughened interlaminar layers in the out-of-plane direction was evaluated at different stress ratios. The spool shaped specimens were cut out the unidirectional thick CFRP laminates which pile up 88 plies of the prepreg with toughened interlaminar layer, T800S/3900-2B. The fatigue tests were conducted under the stress ratios of R = 0.1, -1, -3 and -6 to evaluate the effect of the stress ratio. As the results of the fatigue tests, the fatigue life of the specimens became shorter as the stress ratio became smaller, i.e. as the absolute values of the compressive stress became higher. It was found that the fatigue properties of the CFRP laminates in the out-of-plane direction are affected by the stress amplitude from the experimental results. In addition, the fatigue life under the different stress ratio was evaluated equivalently using the proposed model, modified H-κ model, which considers the strain energy. The analytical results showed good agreement with experimental results. In addition, the fatigue properties of the thick CFRP laminates in the out-of-plane direction were evaluated with the constant fatigue life diagram derived from the proposed model.

      AB - The fatigue life of thick carbon fiber reinforced plastic (CFRP) laminates with toughened interlaminar layers in the out-of-plane direction was evaluated at different stress ratios. The spool shaped specimens were cut out the unidirectional thick CFRP laminates which pile up 88 plies of the prepreg with toughened interlaminar layer, T800S/3900-2B. The fatigue tests were conducted under the stress ratios of R = 0.1, -1, -3 and -6 to evaluate the effect of the stress ratio. As the results of the fatigue tests, the fatigue life of the specimens became shorter as the stress ratio became smaller, i.e. as the absolute values of the compressive stress became higher. It was found that the fatigue properties of the CFRP laminates in the out-of-plane direction are affected by the stress amplitude from the experimental results. In addition, the fatigue life under the different stress ratio was evaluated equivalently using the proposed model, modified H-κ model, which considers the strain energy. The analytical results showed good agreement with experimental results. In addition, the fatigue properties of the thick CFRP laminates in the out-of-plane direction were evaluated with the constant fatigue life diagram derived from the proposed model.

      KW - Constant fatigue life model

      KW - Fatigue

      KW - Out-of-plane

      KW - Stress ratio

      KW - Thick CFRP laminates

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