Journal of Aerospace System Engineering (항공우주시스템공학회지)

The Society for Aerospace System Engineering (항공우주시스템공학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on Bending Behaviors of Laminated Composites using 2D Strain-based Failure Theory

2D 변형률 파손 이론을 이용한 복합재료의 굽힘 거동 해석

  • Kim, Jin-Sung (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Roh, Jin-Ho (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Lee, Soo-Yong (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
  • 김진성 (한국항공대학교, 항공우주 및 기계공학과) ;
  • 노진호 (한국항공대학교, 항공우주 및 기계공학과) ;
  • 이수용 (한국항공대학교, 항공우주 및 기계공학과)
  • Received : 2017.08.24
  • Accepted : 2017.09.29
  • Published : 2017.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, the bending analysis of composite laminates using the classical laminated theory is investigated. A piece-wise linear incremental approach is employed to describe the nonlinear mechanical behavior of the composite laminates, and a 2D strain-based interactive failure theory is employed to predict the ultimate flexural loads. The 3-point bending tests are performed for cross-ply and quasi-isotropic laminates. The analysis results with the failure theory are verified by comparing the analysis findings to the experimental outcome.

본 연구에서는 굽힘 하중을 받는 복합재료 적층판의 파손 해석을 위하여 2D 변형률 기반 파손 이론을 적용하였다. 복합재료 적층판의 비선형 기계적 거동을 모사하기 위하여, 선형 증분 접근 방식을 적용하고 단위 길이 적층판에 대한 점진적 파손 해석을 수행하였다. 크로스플라이 및 준등방성 적층 패턴에 대하여 3점 굽힘 시험을 수행하고 해석 결과와 비교 검증하였다.

Keywords

References

  1. M. J. Hinton, A. S. Kaddour, and P. D. Soden, "A Comparison of the Predictive Capabilities of Current Failure Theories for Composite Laminates; Comparison with Experimental Evidence," Composite Science Technology, vol. 62, pp. 1725-1798, Sep 2002. https://doi.org/10.1016/S0266-3538(02)00125-2
  2. R. Greif and E. Chapon, "Investigation of Successive Failure Modes in Graphite/epoxy Laminated Composite Beams," Journal of Reinforced Plastics and Composites, vol. 12, no. 5, pp. 602-621, May 1993. https://doi.org/10.1177/073168449301200509
  3. T. Y. Kam, and T. B. Jan, "First-ply Failure Analysis of Laminated Composite Plates based on the Layerwise Linear Displacement Theory," Composite Structures, vol. 32, pp. 583-591, 1995. https://doi.org/10.1016/0263-8223(95)00069-0
  4. B. G. Prusty, S. K. Satsangi and C. Ray, "First Ply Failure Analysis of Laminated Panels under Transverse Loading," Journal of Reinforced Plastics and Composites, vol. 20, no. 8, pp. 671-684, Feb 2001. https://doi.org/10.1177/073168401772679020
  5. C. D. Gong, H. B. Park and S. J. Lim, "A Study on 4 Point Bending Strength of Aircraft Composite Specimens," Journal of Aerospace System Engineering, vol. 4, no. 1, pp. 23-26, Mar 2010.
  6. S. Y. Lee, "Critical Buckling Loads of Laminated Composites under Cylindrical Bending," Aerospace System Engineering, vol. 1, no. 4, pp. 28-36, Dec 2007.
  7. C. T. Heracovich, Mechanics of Fibrous Composites, John Wiley & Sons, Inc., 1998.
  8. S. Y. Lee and J. H. Roh, "Two-dimensional Strain-based Interactive Failure Theory for Multidirectional Composite Laminates," Composite Part B, vol. 69, pp. 69-75, Feb 2015. https://doi.org/10.1016/j.compositesb.2014.09.032
  9. R. M. Richard, "Finite Element Analysis of Inelastic Structures," AIAA Journal, vol. 7, pp. 432-438, 1969. https://doi.org/10.2514/3.5125
  10. ASTM D790-13, "Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials," Annual Book of ASTM Standard, 2013.