The Evaluation of Fracture Toughness on Mode I for Twill CFRP/GFRP Laminated Hybrid Composites 


Vol. 35,  No. 5, pp. 9-14, Oct.  2020
10.14346/JKOSOS.2020.35.5.9


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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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  Cite this article

[IEEE Style]

노영우 and 강지웅, "The Evaluation of Fracture Toughness on Mode I for Twill CFRP/GFRP Laminated Hybrid Composites," Journal of the Korean Society of Safety, vol. 35, no. 5, pp. 9-14, 2020. DOI: 10.14346/JKOSOS.2020.35.5.9.

[ACM Style]

노영우 and 강지웅. 2020. The Evaluation of Fracture Toughness on Mode I for Twill CFRP/GFRP Laminated Hybrid Composites. Journal of the Korean Society of Safety, 35, 5, (2020), 9-14. DOI: 10.14346/JKOSOS.2020.35.5.9.

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