Influence of Low-velocity Impact on Damage Behavior of Carbon Fiber-reinforced Composites

Abstract

A combination of experimental measurements and numerical analysis was utilized to study the low-velocity impact damage of domestic carbon fiber-reinforced composites (CFRCs). The results indicated that the low-velocity impact damage induced pits and longitudinal cracks on the front side, oblique cracks and delaminationin on the back side. The pit depth increased with the increasing impact energy. It was demonstrated that the numerical analysis strain history curve was similar to the experimentally measured strain history curve, which verified the accuracy of numerical analysis in which the Hashin failure criterion was used. The work provides basic data and theoretical basis for the promotion and application of the domestic carbon fiber, and demonstrates the feasibility of replacing imported carbon fibers with domestic carbon fibers.

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Correspondence to Jianzhong Chen 陈建中.

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Funded by the Fundamental Research Funds for the Central Universities (No. 2018IB001), and the National High-tech Research and Development Program of China(863 Program) (No. 2013AA031306)

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Zhang, X., Zhou, R., Chen, J. et al. Influence of Low-velocity Impact on Damage Behavior of Carbon Fiber-reinforced Composites. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 35, 482–487 (2020). https://doi.org/10.1007/s11595-020-2282-9

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Key words

  • domestic carbon fiber-reinforced composites
  • low-velocity impact
  • Hashin failure criterion
  • damage mode
  • strain history curve