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Korean Carbon Society (한국탄소학회)
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Effect of stacking sequence on the flexural and fracture properties of carbon/basalt/epoxy hybrid composites

  • Lim, Jae Il (Department of Mechanical Engineering, College of Engineering, Kyung Hee University) ;
  • Rhee, Kyong Yop (Department of Mechanical Engineering, College of Engineering, Kyung Hee University) ;
  • Kim, Hyun Ju (Maritime and Ocean Engineering Research Institute, Korea Institute of Ocean Science and Technology) ;
  • Jung, Dong Ho (Maritime and Ocean Engineering Research Institute, Korea Institute of Ocean Science and Technology)
  • Received : 2014.01.16
  • Accepted : 2014.03.03
  • Published : 2014.04.30
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Abstract

In this study, the effect of stacking sequence on the flexural and fracture properties of carbon/basalt/epoxy hybrid composites was investigated. Two types of carbon/basalt/epoxy hybrid composites with a sandwich form were fabricated: basalt skin-carbon core (BSCC) composites and carbon skin-basalt core (CSBC) composites. Fracture tests were conducted and the fracture surfaces of the carbon/basalt/epoxy hybrid composites were then examined using scanning electron microscopy (SEM). The results showed that the flexural strength and flexural modulus of the CSBC specimen respectively were ~32% and ~245% greater than those of the BSCC specimen. However, the interlaminar fracture toughness of the CSBC specimen was ~10% smaller than that of the BSCC specimen. SEM results on the fracture surface showed that matrix cracking is a dominant fracture mechanism for the CSBC specimen while interfacial debonding between fibers and epoxy resin is a dominant fracture process for the BSCC specimen.

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References

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