Monitoring of internal residual strain changes in CFRP using FBG sensors

Shin Ichi Takeda, Jun Koyanagi, Shin Utsunomiya, Yuto Kinoshita, Yoshihiko Arao, Hiroyuki Kawada

    研究成果: Conference contribution

    抄録

    FBG (Fiber Bragg Grating) sensors were embedded into CFRP unidirectional composite laminates in a direction perpendicular to the carbon fiber. Residual strains after curing were evaluated by the reflection spectrum from the FBGs. The CFRP laminates were kept at 100 °C for monitoring of the residual strain change measured by the FBGs. Without mechanical loading, occurrence of physical aging was confirmed by the residual strain changes. The relationship between the influence of physical aging on residual strain and the thickness of the CFRP was almost linear.

    元の言語English
    ホスト出版物のタイトルProceedings of SPIE - The International Society for Optical Engineering
    7522
    DOI
    出版物ステータスPublished - 2010
    イベント4th International Conference on Experimental Mechanics - Singapore
    継続期間: 2009 11 182009 11 20

    Other

    Other4th International Conference on Experimental Mechanics
    Singapore
    期間09/11/1809/11/20

    Fingerprint

    carbon fiber reinforced plastics
    Fiber Bragg Grating Sensor
    Carbon fiber reinforced plastics
    Fiber Bragg gratings
    Bragg gratings
    Monitoring
    Internal
    laminates
    fibers
    sensors
    Sensors
    Laminates
    Aging of materials
    carbon fibers
    curing
    Composite Laminates
    Curing
    Carbon Fiber
    occurrences
    Perpendicular

    Keywords

      ASJC Scopus subject areas

      • Applied Mathematics
      • Computer Science Applications
      • Electrical and Electronic Engineering
      • Electronic, Optical and Magnetic Materials
      • Condensed Matter Physics

      これを引用

      Takeda, S. I., Koyanagi, J., Utsunomiya, S., Kinoshita, Y., Arao, Y., & Kawada, H. (2010). Monitoring of internal residual strain changes in CFRP using FBG sensors. : Proceedings of SPIE - The International Society for Optical Engineering (巻 7522). [75223N] https://doi.org/10.1117/12.851692

      Monitoring of internal residual strain changes in CFRP using FBG sensors. / Takeda, Shin Ichi; Koyanagi, Jun; Utsunomiya, Shin; Kinoshita, Yuto; Arao, Yoshihiko; Kawada, Hiroyuki.

      Proceedings of SPIE - The International Society for Optical Engineering. 巻 7522 2010. 75223N.

      研究成果: Conference contribution

      Takeda, SI, Koyanagi, J, Utsunomiya, S, Kinoshita, Y, Arao, Y & Kawada, H 2010, Monitoring of internal residual strain changes in CFRP using FBG sensors. : Proceedings of SPIE - The International Society for Optical Engineering. 巻. 7522, 75223N, 4th International Conference on Experimental Mechanics, Singapore, 09/11/18. https://doi.org/10.1117/12.851692
      Takeda SI, Koyanagi J, Utsunomiya S, Kinoshita Y, Arao Y, Kawada H. Monitoring of internal residual strain changes in CFRP using FBG sensors. : Proceedings of SPIE - The International Society for Optical Engineering. 巻 7522. 2010. 75223N https://doi.org/10.1117/12.851692
      Takeda, Shin Ichi ; Koyanagi, Jun ; Utsunomiya, Shin ; Kinoshita, Yuto ; Arao, Yoshihiko ; Kawada, Hiroyuki. / Monitoring of internal residual strain changes in CFRP using FBG sensors. Proceedings of SPIE - The International Society for Optical Engineering. 巻 7522 2010.
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      abstract = "FBG (Fiber Bragg Grating) sensors were embedded into CFRP unidirectional composite laminates in a direction perpendicular to the carbon fiber. Residual strains after curing were evaluated by the reflection spectrum from the FBGs. The CFRP laminates were kept at 100 °C for monitoring of the residual strain change measured by the FBGs. Without mechanical loading, occurrence of physical aging was confirmed by the residual strain changes. The relationship between the influence of physical aging on residual strain and the thickness of the CFRP was almost linear.",
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      AU - Arao, Yoshihiko

      AU - Kawada, Hiroyuki

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