Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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The Evaluation of Fracture Toughness on Mode I for Twill CFRP/GFRP Laminated Hybrid Composites

능직 CFRP/GFRP 적층하이브리드 복합재의 Mode I 파괴인성 평가

  • Roh, Young Woo (Department of Public Health, Daegu Hanny University) ;
  • Kang, Ji Woong (Division of Health Science, Daegu Hanny University)
  • 노영우 (대구한의대학교 대학원 보건학과) ;
  • 강지웅 (대구한의대학교 보건학부)
  • Received : 2020.05.26
  • Accepted : 2020.10.05
  • Published : 2020.10.31
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Abstract

In order to realize high strength and light weight for various industrial facilities and structural materials, various new materials are applied to product design. Among them, CFRP has excellent specific strength and non-rigidity, and the scope of use is expanding throughout the industry, such as mobility products and building materials. GFRP is cheaper than CFRP, and has excellent specific strength and non-rigidity, and has excellent heat resistance and sound insulation, so it has been adopted as a core material for flooring and interior flooring. CFRP of twill weave structure has better resistance to deformation of fiber than plain weave structure, so the outermost layer is applied as twill weave structure in product design. After fabrication with DCB specimens, Mode I fracture toughness was evaluated according to the crack length. As the crack length increases, the energy release rate and stress intensity factor values tended to decrease overall.

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References

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