Microscopic damage of quasi-isotropic carbon/epoxy laminates at various temperatures

Hyoung Soo Kim, Keiji Ogi, Terutake Matsubara, Wen Xue Wang, Yoshihiro Takao

研究成果: Contribution to journalArticle査読

6 被引用数 (Scopus)

抄録

Quasi-isotropic Carbon/Epoxy laminates under tensile loading are investigated to understand the effects of temperature on stress-strain response and damage progress including the interlaminar delamination growth behavior. The material system used is T800H/3631 and the stacking sequence is quasi-isotropic [0°/45°/-45°/90°]s. The transverse crack behavior is microscopically observed and its density is quantitatively measured by using an optical microscope under various loads at different temperatures, i.e., low (-100°), room (25°) and high (150°) temperatures. The interlaminar delamination growth behavior is non-destructively examined by a scanning acoustic microscope (SAM). It is found that nonlinearity observed in the stress-strain response is caused by the large scale interlaminar delamination throughout the length of the specimen. The transverse crack propagation and interlaminar delamination growth behavior are obviously affected by the temperature environments. Characteristic transverse crack formation at the edge of -45° layer under -100°C is pointed out and its mechanism is discussed with the use of shear coupling of an off-axis lamina.

本文言語英語
ページ(範囲)599-605
ページ数7
ジャーナルZairyo/Journal of the Society of Materials Science, Japan
47
6
DOI
出版ステータス出版済み - 6 1998

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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