Crushing characteristics of filament wound carbon fiber/epoxy tube under quasi-static compression condition

  • Jinming Zhu (朱锦明)
  • Wenbin Li
  • Guang Yang
  • Xiaolong Jia (贾晓龙)
  • Xiaoping Yang
Advanced materials

Abstract

We investigated the effect of structural factor and amide grafted multi-walled carbon nanotubes (MWNTs-NH2) on crushing characteristics of filament wound CFRP tube under quasi-static compression conditon. It was found that CFRP tubes sequentially showed the brittle fracturing mode, the local buckling fracturing mode and transverse shearing fracturing mode with increasing winding angle, respectively, with the characterizations by mechanical testing, SEM and optical microscopy. Moreover, crack propagation initiated by pre-crack and subsequent failure in the tube were strongly dependent on pre-crack angle due to deflection and penetration competition of crack evolution. The simulated compression failure behavior correlated well with the experimental results, revealing that the Chang-Chang failure criterion was effective in representing the quasistatic crushing characteristics of the tube. In addtion, the MWNTs-NH2 were sucessfully obtained by multistep functionization. The compressvie properties of the tubes were significantly improved by the addition of the MWNTs-NH2 due to their uniform dispersion and high interfacial chemical reactivity, whereas the as-received MWNTs and other functionalized MWNTs were not as effective.

Key words

winding angle pre-crack angle crushing characteristics MWNTs 

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Copyright information

© Wuhan University of Technology and Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • Jinming Zhu (朱锦明)
    • 1
  • Wenbin Li
    • 1
  • Guang Yang
    • 1
  • Xiaolong Jia (贾晓龙)
    • 1
  • Xiaoping Yang
    • 1
  1. 1.State Key Laboratory of Organic-Inorganic CompositesBeijing University of Chemical TechnologyBeijingChina

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