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http://dx.doi.org/10.14346/JKOSOS.2020.35.5.9

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

Roh, Young Woo (Department of Public Health, Daegu Hanny University)
Kang, Ji Woong (Division of Health Science, Daegu Hanny University)
Publication Information
Journal of the Korean Society of Safety / v.35, no.5, 2020 , pp. 9-14 More about this Journal
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.
Keywords
CFRP; energy release rate; fracture toughness; GFRP; laminated hybrid composite; mode I; twill;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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1 W. C. Hwang, Y. M. Choi, K. H. Im, C. S. Cha, Y. J. Yang and I. Y. Yang, "A Study on Impact Collapse Modes of Composite Structural Members using Carbon Fiber Reinforced Plastics for Car Body Lightweight", J. Korean Soc. Saf., Vol. 29, No. 5, pp. 7-14, 2014.   DOI
2 J. H. Yoo, "The Influence of Volume Fraction and Fiber Orientation of CFRP Layer on Flexural Properties of Al 7075/CFRP Multi-Layered Hybrid Laminate Material", J. Korean Soc. Saf., Vol. 19, No. 4, pp. 31-35, 2004.
3 S. S. Kim, J. W. Kang and O. H. Kwon, "The FSI Analysis Evaluation of Strength for the Wind Turbine Rotor Blade Improved by the Aramid Fiber", Journal of the Korean Society for Power System Engineering, Vol. 19, No. 4, pp. 17-23, 2015.
4 C. S. Hong, "Interlayer Fracture Test Method of Composite Mmaterials", The Korean Society of Mechanical Engineers, Vol. 30, No. 2, pp. 172-179, 1990.
5 H. J. Moon, "Carbon Fiber Composite Material Market Trend", S&T Market Report, Vol. 38, pp. 2-18, 2016.
6 H. K. Yoon, Y. K. Kim, J. S. Park and K. B. Lee, "A Study on Fatigue Life of Al 7075/CFRP Multilayered Hybrid Composite Materials", Journal of Ocean Engineering and Technology, Vol. 10, No. 4, pp. 92-102, 1996.
7 S. Bennati, M. Colleluori, D. Corigliano and P. S. Valvo, "An Enhanced Beam Theory Model of the Assymmetric Double Cantilever Beam Test for Composite Laminates", Composite Science and Technology, Vol. 69, pp. 1735-1745, 2009.   DOI
8 W. O. Soboyejo, G. Y. Lu, S. Chengalva, J. Zhang and V. Kenner, "A Modified Mixed-mode Bending Specimen for the Interfacial Fracture Testing of Dissimilar Materials", Fatigue Fracture Engineering Materials Structure, Vol. 22, pp. 799-810, 1999.   DOI
9 O. H. Kwon, W. D. Kwon and J. W. Kang, "The Effects of the Initial Crack Length and Fiber Orientation on the Interlaminar Delamination of the CFRP/GFRP Hybrid Laminate", J. Korean Soc. Saf., Vol. 28, No. 1, pp. 12-17, 2013.   DOI
10 M. S. Kang, M. H. Jeon, I. K. Kim and K. S. Woo, "The Study on the Characteristics of Mode I Crack for Cross-ply Carbon/Epoxy Composite Laminates Based on Stress Fields", Composites Research, Vol. 32, No. 6, pp. 327-334, 2019.
11 http://www.hdfiber.co.kr/sub03/01
12 http://www.hdfiber.co.kr/sub03/02
13 Standard Test Method for Mode I Interlaminar Fracture Toughness of Unidirectional Fiber Reinforced Polymer Matrix Composites, ASTM D 5528-01, ASTM Annual Book of Standards, 2001.
14 M. F. Kanninen, "A New Techniques for Determining Fracture Toughness KIC and its Confidence with Single DCB Specimen", International Journal of Fracture, Vol. 9, pp. 83-92, 1997.   DOI
15 V. Mollon, J. Bonhomme, J. Vina and A. Arguells, "Mixed Mode Fracture Toughness: An Empirical Formulation for GI/GII Determination in Asymmetric DCB Specimens", Engineering Structures, Vol. 32, pp. 3699-3703, 2010.   DOI