An effect of physical aging progression on viscoelastic property in carbon/epoxy composites

Yukie Okudoi, Yoshihiko Arao, Jun Koyanagi, Shin Ichi Takeda, Hiroyuki Kawada

    研究成果: Conference contribution

    1 引用 (Scopus)

    抄録

    This study aims to quantify the effect of physical aging progression on viscoelastic property in carbon/epoxy composites. Understanding viscoelastic behavior of carbon fiber reinforced plastics (CFRPs) has become an essential issue for further application of CFRPs to aerospace structures, which require high dimensional accuracy. In this research, the viscoelastic property was evaluated by quasi-static tensile tests in transverse direction for unidirectional laminates. The progression time of physical aging versus viscoelastic parameters was obtained. It was found that the viscoelastic behavior becomes less significant as the physical aging progresses. Considering the quantitative result, creep compliance function, which is conventionally difficult to predict due to the unknown physical aging effect, was predicted as functions of creep time and preceding aging time. This prediction was verified by actually performing a long-term creep test in transverse direction for unidirectional composites. Creep test result and the calculated results using viscoelastic parameters obtained from quasi-static tensile tests showed similar results up to the aging time given to the specimen before the test, but they showed different trends along with time progression. By taking into account the progression of physical aging, the calculated lines are likely to show better correspondence with the creep curves.

    元の言語English
    ホスト出版物のタイトル7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010
    出版者ACCM-7 Organizing Committee
    ページ194-197
    ページ数4
    1
    ISBN(印刷物)9781632660756
    出版物ステータスPublished - 2010
    イベント7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010 - Taipei
    継続期間: 2010 11 152010 11 18

    Other

    Other7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010
    Taipei
    期間10/11/1510/11/18

    Fingerprint

    Carbon
    Aging of materials
    Creep
    Composite materials
    Carbon fiber reinforced plastics
    Laminates
    Direction compound
    carbon fiber reinforced plastic

    Keywords

      ASJC Scopus subject areas

      • Electronic, Optical and Magnetic Materials

      これを引用

      Okudoi, Y., Arao, Y., Koyanagi, J., Takeda, S. I., & Kawada, H. (2010). An effect of physical aging progression on viscoelastic property in carbon/epoxy composites. : 7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010 (巻 1, pp. 194-197). ACCM-7 Organizing Committee.

      An effect of physical aging progression on viscoelastic property in carbon/epoxy composites. / Okudoi, Yukie; Arao, Yoshihiko; Koyanagi, Jun; Takeda, Shin Ichi; Kawada, Hiroyuki.

      7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010. 巻 1 ACCM-7 Organizing Committee, 2010. p. 194-197.

      研究成果: Conference contribution

      Okudoi, Y, Arao, Y, Koyanagi, J, Takeda, SI & Kawada, H 2010, An effect of physical aging progression on viscoelastic property in carbon/epoxy composites. : 7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010. 巻. 1, ACCM-7 Organizing Committee, pp. 194-197, 7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010, Taipei, 10/11/15.
      Okudoi Y, Arao Y, Koyanagi J, Takeda SI, Kawada H. An effect of physical aging progression on viscoelastic property in carbon/epoxy composites. : 7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010. 巻 1. ACCM-7 Organizing Committee. 2010. p. 194-197
      Okudoi, Yukie ; Arao, Yoshihiko ; Koyanagi, Jun ; Takeda, Shin Ichi ; Kawada, Hiroyuki. / An effect of physical aging progression on viscoelastic property in carbon/epoxy composites. 7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010. 巻 1 ACCM-7 Organizing Committee, 2010. pp. 194-197
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      AU - Kawada, Hiroyuki

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      AB - This study aims to quantify the effect of physical aging progression on viscoelastic property in carbon/epoxy composites. Understanding viscoelastic behavior of carbon fiber reinforced plastics (CFRPs) has become an essential issue for further application of CFRPs to aerospace structures, which require high dimensional accuracy. In this research, the viscoelastic property was evaluated by quasi-static tensile tests in transverse direction for unidirectional laminates. The progression time of physical aging versus viscoelastic parameters was obtained. It was found that the viscoelastic behavior becomes less significant as the physical aging progresses. Considering the quantitative result, creep compliance function, which is conventionally difficult to predict due to the unknown physical aging effect, was predicted as functions of creep time and preceding aging time. This prediction was verified by actually performing a long-term creep test in transverse direction for unidirectional composites. Creep test result and the calculated results using viscoelastic parameters obtained from quasi-static tensile tests showed similar results up to the aging time given to the specimen before the test, but they showed different trends along with time progression. By taking into account the progression of physical aging, the calculated lines are likely to show better correspondence with the creep curves.

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