DOI QR코드

DOI QR Code

Analysis Study on Influence that the Center Hole Notch of CFRP with Laminated Structure Affects

적층구조를 가진 CFRP의 중앙 노치구멍이 미치는 영향에 관한 해석적 연구

  • Received : 2017.12.13
  • Accepted : 2018.02.20
  • Published : 2018.02.28

Abstract

In this paper, the fracture behaviour at CFRP laminated structure due to the vertical falling impact of the fight drone frame composed of CFRP was investigated through the analytical study. As CFRP consists of fiber differently from the existing plastic material, the fracture behaviour becoms complex. So, the preceding study is important through the analytical study before this experiment. By comparing with the existing study model at the same condition as the result of this study, the applied stress value is shown to decrease greatly at the analysis model with the center notch hole of the laminated CFRP drone frame. On the basis of this study result, the esthetic sense can be shown as the foundation data about the notch hole of drone frame are grafted onto the convergence technique.

Keywords

CFRP(Carbon Fiber Reinforced Plastic);Fight drone frame;Laminated structure;Fracture;Notch hole

References

  1. J. U. Cho, C. S. Kim, H. S. Lee and Y. C. Kim. (2014). Study of the Damage Property of a Contacted Indent by Finite Element, Method. Journal of the Korea Academia-Industrial cooperation Society 15(10). 5974-5979. https://doi.org/10.5762/KAIS.2014.15.10.5974
  2. J. W. Park, J. U. Cho. (2017). Convergence Study on Composite Material of Unidirectional CFRP and SM 45C Sandwich Type that Differs in Stacking Angle. Journal of the Korea Convergence Society. 8(7). 231-236. https://doi.org/10.15207/JKCS.2017.8.7.231
  3. G. W. Hwang, J. U. Cho. (2017). Convergence Study on Durability Improvement due to Radius of Arch Type at CFRP Structure with Stacking Angle. Journal of the Korea Convergence Society. 8(7). 219-224. https://doi.org/10.15207/JKCS.2017.8.4.219
  4. G. W. Hwang, J. U. Cho. (2017). Analysis Study on the Damage of Crack Happening with the Bending at CFRP Plate due to Stacking Angle. Journal of the Korea Convergence Society. 8(3). 185-190. https://doi.org/10.15207/JKCS.2017.8.3.185
  5. J. W. Park, J. U. Cho. (2017). A Study of Fracture Behavior due to the Propagation of Center Crack at Unidirectional CFRP through Finite Element Analysis. Journal of the Korean Society of Mechanical Technology. 19(1). 21-26. https://doi.org/10.17958/ksmt.19.1.201702.21
  6. J. H. Lee, J. U. Cho. (2016). Evaluation on Strength and Durability of Tensile Specimens of CFRP and Metal with Notches. Journal of the Korean Society of Mechanical Technology. 18(6). 867-872. https://doi.org/10.17958/ksmt.18.6.201612.867
  7. G. W. Hwang, J. U. Cho. (2017). Analysis Study on the Damage of Crack Happening with the Bending at CFRP Plate due to Stacking Angle. Journal of the Korea Convergence Society. 8(3). 185-190. https://doi.org/10.15207/JKCS.2017.8.3.185
  8. J. H. Lee, J. U. Cho. (2016). A Study on Impact Fracture on CFRP Sandwich Composite and CFRP Sandwich Composite with Aluminum Foam Core. Journal of the Korean Society of Mechanical Technology. 18(2). 214-219. https://doi.org/10.17958/ksmt.18.2.201604.214
  9. J. H. Lee and J. U. Cho. (2016). An Analytical Study on Crack Behavior Inside Standard Compact Tension Specimen with Holes. Transactions of the Korean Society of Mechanical Engineers - A. 40(6). 531-537. https://doi.org/10.3795/KSME-A.2016.40.6.531
  10. M. S. Han, J. U. Cho. (2004). A Study on the Plastic Zone of the Specimen at the Impact of Dynamic Load. Transaction of the Korean Society of Automotive Engineers. 12(3). 139-144.
  11. M. S. Kang, H. S. Park, J. H. Choi, J. M. Koo and C. S. Seok. (2012). Prediction of Fracture Strength of Woven CFRP Laminates According to Fiber Orientation. Transactions of the Korean Society of Mechanical Engineers - A. 36(8). 881-887. https://doi.org/10.3795/KSME-A.2012.36.8.881
  12. K. C. Park and M. S. Kim. (1994). Analysis of the Residual Strengths and Failure Mechanisms in Laminated Composites under Impact Loading, Journal of the Korean Society for Precision Engineering.. 11(3). 105-121.
  13. C. S. Seak and S. Y. Kim. (2000). Variation of the Fracture Resistance Curve with the Change of a Size in the CT Specimen. Transactions of the Korean Society of Mechanical Engineers - A. 24(12). 2963-2971. https://doi.org/10.22634/KSME-A.2000.24.12.2963
  14. G. W. Hwang, J. U. Cho and C. D. Cho. (2016). A Property of Crack Propagation at the Specimen of CFRP with Layer Angle. Transactions of the Korean Society of Mechanical Engineers - A. 40(12). 1013-1019. https://doi.org/10.3795/KSME-A.2016.40.12.1013
  15. J. U. Cho. (2014). Analytical Study on Durability due to the Load of Artificial Knee Joint. Journal of the Korea Convergence Society. 5(2). 7-11. https://doi.org/10.15207/JKCS.2014.5.2.007

Acknowledgement

Supported by : National Research Foundation of Korea (NRF), Ministry of SMEs and Startups