Interaction between transverse cracks and edge delamination considering free-edge effects in composite laminates

Atsushi Hosoi, Shinako Yagi, Keiichi Nagata, Hiroyuki Kawada

    研究成果: Conference contribution

    6 引用 (Scopus)

    抄録

    The high-cycle fatigue characteristics, especially the initiation and propagation of edge delamination, were investigated with quasi-isotropic carbon fiber reinforced plastic (CFRP) laminates with a stacking sequence of [45/0/-45/90]S. To investigate the influence that transverse cracks have on the initiation and propagation of edge delamination, two types of specimens are used. One was a specimen where transverse cracks were arbitrarily introduced by static tensile loading before conducting the fatigue tests. The other was an undamaged specimen as new. As a result, it was found that the single transverse crack introduced before the fatigue test did not seriously affect the initiation of edge delamination. Moreover, the difference of the fatigue damage growth behavior depending on the applied stress level was observed. Under the test conditions of low-applied stress level and high-cyclic loadings, it was observed that the edge delamination grew before, or simultaneously with, the transverse crack propagation.

    元の言語English
    ホスト出版物のタイトルICCM International Conferences on Composite Materials
    出版物ステータスPublished - 2007
    イベント16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace" - Kyoto
    継続期間: 2007 7 82007 7 13

    Other

    Other16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace"
    Kyoto
    期間07/7/807/7/13

    Fingerprint

    Delamination
    Laminates
    Cracks
    Composite materials
    Fatigue of materials
    Crack propagation
    Plastic laminates
    Carbon fiber reinforced plastics
    Fatigue damage

    Keywords

      ASJC Scopus subject areas

      • Engineering(all)
      • Ceramics and Composites

      これを引用

      Hosoi, A., Yagi, S., Nagata, K., & Kawada, H. (2007). Interaction between transverse cracks and edge delamination considering free-edge effects in composite laminates. : ICCM International Conferences on Composite Materials

      Interaction between transverse cracks and edge delamination considering free-edge effects in composite laminates. / Hosoi, Atsushi; Yagi, Shinako; Nagata, Keiichi; Kawada, Hiroyuki.

      ICCM International Conferences on Composite Materials. 2007.

      研究成果: Conference contribution

      Hosoi, A, Yagi, S, Nagata, K & Kawada, H 2007, Interaction between transverse cracks and edge delamination considering free-edge effects in composite laminates. : ICCM International Conferences on Composite Materials. 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace", Kyoto, 07/7/8.
      Hosoi, Atsushi ; Yagi, Shinako ; Nagata, Keiichi ; Kawada, Hiroyuki. / Interaction between transverse cracks and edge delamination considering free-edge effects in composite laminates. ICCM International Conferences on Composite Materials. 2007.
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      abstract = "The high-cycle fatigue characteristics, especially the initiation and propagation of edge delamination, were investigated with quasi-isotropic carbon fiber reinforced plastic (CFRP) laminates with a stacking sequence of [45/0/-45/90]S. To investigate the influence that transverse cracks have on the initiation and propagation of edge delamination, two types of specimens are used. One was a specimen where transverse cracks were arbitrarily introduced by static tensile loading before conducting the fatigue tests. The other was an undamaged specimen as new. As a result, it was found that the single transverse crack introduced before the fatigue test did not seriously affect the initiation of edge delamination. Moreover, the difference of the fatigue damage growth behavior depending on the applied stress level was observed. Under the test conditions of low-applied stress level and high-cyclic loadings, it was observed that the edge delamination grew before, or simultaneously with, the transverse crack propagation.",
      keywords = "Cfrp laminates, Composites, Delamination, Free-edge effects, High-cycle fatigue, Transverse crack",
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      AU - Hosoi, Atsushi

      AU - Yagi, Shinako

      AU - Nagata, Keiichi

      AU - Kawada, Hiroyuki

      PY - 2007

      Y1 - 2007

      N2 - The high-cycle fatigue characteristics, especially the initiation and propagation of edge delamination, were investigated with quasi-isotropic carbon fiber reinforced plastic (CFRP) laminates with a stacking sequence of [45/0/-45/90]S. To investigate the influence that transverse cracks have on the initiation and propagation of edge delamination, two types of specimens are used. One was a specimen where transverse cracks were arbitrarily introduced by static tensile loading before conducting the fatigue tests. The other was an undamaged specimen as new. As a result, it was found that the single transverse crack introduced before the fatigue test did not seriously affect the initiation of edge delamination. Moreover, the difference of the fatigue damage growth behavior depending on the applied stress level was observed. Under the test conditions of low-applied stress level and high-cyclic loadings, it was observed that the edge delamination grew before, or simultaneously with, the transverse crack propagation.

      AB - The high-cycle fatigue characteristics, especially the initiation and propagation of edge delamination, were investigated with quasi-isotropic carbon fiber reinforced plastic (CFRP) laminates with a stacking sequence of [45/0/-45/90]S. To investigate the influence that transverse cracks have on the initiation and propagation of edge delamination, two types of specimens are used. One was a specimen where transverse cracks were arbitrarily introduced by static tensile loading before conducting the fatigue tests. The other was an undamaged specimen as new. As a result, it was found that the single transverse crack introduced before the fatigue test did not seriously affect the initiation of edge delamination. Moreover, the difference of the fatigue damage growth behavior depending on the applied stress level was observed. Under the test conditions of low-applied stress level and high-cyclic loadings, it was observed that the edge delamination grew before, or simultaneously with, the transverse crack propagation.

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      KW - Composites

      KW - Delamination

      KW - Free-edge effects

      KW - High-cycle fatigue

      KW - Transverse crack

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