Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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The Patch Attachment Effect for Bending Behavior on the CF/Aramid Composites with Seawater Aging and Hole Damage

해수 열화 및 원공 손상 CF/Aramid 복합재의 패치 부착이 굽힘거동에 미치는 영향

  • Woo Deok Kwon (Department of Safety Engineering, Pukyong National University) ;
  • Oh Heon Kwon (Department of Safety Engineering, Pukyong National University) ;
  • Yu Seong Yun (JM Eco Co., Ltd, R&D)
  • 권우덕 (부경대학교 안전공학과) ;
  • 권오헌 (부경대학교 안전공학과) ;
  • 윤유성 (제이엠 에코(주) 연구소)
  • Received : 2023.04.14
  • Accepted : 2023.06.10
  • Published : 2023.06.30
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Abstract

Fiber-reinforced composite materials with carbon, glass, and aramid fibers are widely applied to industrial field structures due to their excellent properties. However, carbon fibers are vulnerable to external impacts, whereas aramid fibers degrade when exposed to water. This study evaluated carbon/aramid fiber composites degraded and damaged by high-temperature saline environments using acoustic emission (AE). The test specimen was molded using an autoclave and immersed in seawater at 70 ℃ for 224 days. In order to imitate the damage, a 3-mm-diameter hole was drilled using a diamond drill. Additionally, the specimen with the perforation was repaired by patch attachment processing. Three-point bending was used to conduct the flexural experiment, and an AE sensor with a 150-kHz resonance frequency was attached to evaluate the damage and the effect of patch attachment. AE accumulative counts obtained at the maximum load were 69.2, 67.1, and 91.2 for a high-temperature seawater deteriorated condition, a hole specimen, and a repaired patch specimen, respectively. Furthermore, the maximum amplitude of AE was detected at low values of 28 dB, 31.3 dB, and 30.3 dB.

Keywords

References

  1. Y. R. Ryu, Y. S. Yun and O. H. Kwon, "AE Application for Fracture Behavior of SiC Reinforced CFRP Composites", J. Korean Soc. Saf., Vol. 31, No. 3, pp. 16-21, 2016. https://doi.org/10.14346/JKOSOS.2016.31.3.16
  2. H. Rahmani, S. H. M. Najafi and A. Ashori, "Mechanical Performance of Epoxy/Carbon Fiber Laminated Composites", Journal of Reinforced Plastic Composites, Vol. 33, No. 8, pp. 733-740, 2014. https://doi.org/10.1177/0731684413518255
  3. J. W. S. Hearle, "High-Performance Fibers", Woodhead Pub. Ltd. New York, pp. 23-58, 2001.
  4. L. Nicolais, M. Meo and E. Milella, "Composite Materials, A Vision for the Future", Springer, London, 2011.
  5. K. Komai, K. Minoshima, K. Tanaka and T. Tokura, "Effects of Stress Waveform and Water Absorption on the Fatigue Strength of Angle-ply Aramid Fiber/Epoxy Composites", International Journal of Fatigue, Vol. 24, No. 2, pp. 339-348, 2002. https://doi.org/10.1016/S0142-1123(01)00089-5
  6. C. Y. Yue, G. X. Sui and H. C. Looi, "Effects of Heat Treatment on the Mechanical Properties of Kevlar-29 Fiber", Composites Science and Technology, Vol. 60, No. 3, pp. 421-427, 2000. https://doi.org/10.1016/S0266-3538(99)00137-2
  7. A. K. Bandaru, L. Vetiyatil and S. Ahmad, "The Effect of Hybridization on the Ballistic Impact Behavior of Hybrid Composite Armors", Composites Part B, Vol. 76, pp. 300-319, 2015. https://doi.org/10.1016/j.compositesb.2015.03.012
  8. K.B. Katnam, L. F. M. D. Silva and T. M. Young, "Bonded Repair of Composite Aircraft Structures : A Review of Scientific Challenges and Opportunities", Progress in Aerospace Sciences, Vol. 61, pp. 26.42, 2013.
  9. W. Zhou, X. I. Ji, S. Yang, J. Liu and L. H. Ma, "Review on the Performance Improvements and Non-destructive Testing of Patches Repaired Ccomposites", Composite Structures, Vol. 263, 113659, 2021.
  10. Y. E. Hwang and S. H. Yoon, "Effect of Patch Hybridization on the Compression Behavior of Patch Repaired Glass/Epoxy Composite Laminates using Acoustic Emission Monitoring", Transactions of the Korean Society of Mechanical Engineers A , Vol. 36, No. 10, pp. 1261-1266, 2012. https://doi.org/10.3795/KSME-A.2012.36.10.1261
  11. G. Derombise, E. Chailleux, B. Forest, N. Lacotte, L. V. V. Schoors and P. Davies, "Long-term Mechanical Behavior of Aramid Fibers in Seawater", Polymer Engineering & Science, Vol. 51, pp. 1366-1375, 2011. https://doi.org/10.1002/pen.21922
  12. Z. A. Oguz and A. Erklig, "Hydrothermal Aging Effect on the Tensile Properties of Hybrid Aramid/Glass/Epoxy Composites", Journal of Composite materials, Vol. 56, Issue 24, pp. 3695-3714, 2022. https://doi.org/10.1177/00219983221121850
  13. Z. A. Oguz , A. Erklig and O. Y. Bozkurt, " Degradation of Hybrid Aramid/Glass/Epoxy Composites Hydrothermally Aged in Distilled Water", Journal of Composites Materilas, Vol. 55, Issue 15, pp. 2043-2060, 2021. https://doi.org/10.1177/0021998320984237
  14. M. Amini, R. A. Gazik, F. Honarvar and A. Montazeri, "Analysis of Failure Mechanisms of Degraded Hybrid Glass-Carbon Composites in Acidic Medium: Insights from Acoustic Emission Analysis", Engineering Failure Analysis, Vol. 134, 106082, 2022.
  15. X. Wang, H. Xie, Y. Tong, B. Wang and H. Hu, "Three-point Bending Properties of 3D_C/C_TiC_Cu Composites", Mechanical Systems and Signal Processing, Vol. 184, 109693, 2023.
  16. ASTM D 7264/D 7264M, 7 Standard Test Method for Flexural Properties of Polymer Matrix Composite Materials.
  17. W. D. Kwon, O. H. Kwon and W. R. Park, "The Effects of Temperature and Water Absorption on Failure Behaviors of Carbon / Aramid Fiber Composites", J. Korean Soc. Saf., Vol. 37, No. 4, pp. 11-19, 2022.
  18. T. L. Anderson, Fracture Mechanics : Fundamentals and Applications, CRC Press, Florida, 1994.