Quantitative evaluation of fatigue damage growth in CFRP laminates that changes due to applied stress level

Atsushi Hosoi*, Keigo Takamura, Narumichi Sato, Hiroyuki Kawada

*この研究の対応する著者

研究成果: Article査読

40 被引用数 (Scopus)

抄録

The change of fatigue damage behavior depending on an applied stress level in carbon fiber reinforced plastic (CFRP) laminates was evaluated quantitatively in this study. To evaluate damage growth, the energies released due to transverse crack propagation and delamination growth per unit length with consideration of transverse crack propagation were derived. Moreover, the transverse crack propagation and the delamination growth were evaluated using a modified Paris law that gives the relationship between the damage growth rate and the energy released due to damage growth. As a result, it was found that the growth of the transverse crack and the delamination could be evaluated with the unique Paris law constants, respectively. Finally, it was concluded that the change of the fatigue damage growth behavior was caused due to the difference of the growth rate of the transverse cracks and delamination at an applied stress level.

本文言語English
ページ(範囲)781-787
ページ数7
ジャーナルInternational Journal of Fatigue
33
6
DOI
出版ステータスPublished - 2011 6

ASJC Scopus subject areas

  • モデリングとシミュレーション
  • 材料科学(全般)
  • 材料力学
  • 機械工学
  • 産業および生産工学

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