Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

Evaluation of Compressive Residual Strength in Composite Material Under Impact Damage

충격 손상을 받은 항공기용 복합재료의 압축잔류강도 평가

  • 안상수 (성균관대학교 기계공학부) ;
  • 홍석우 (성균관대학교 기계공학부) ;
  • 구재민 (성균관대학교 기계공학부) ;
  • 석창성 (성균관대학교 기계공학부)
  • Received : 2012.09.05
  • Accepted : 2013.01.09
  • Published : 2013.04.01
Download PDF
⟨ Previous Next ⟩

Abstract

Carbon fiber reinforced plastics (CFRPs), a composite material, are generally vulnerable to compressive load and impact damage in a direction perpendicular to the surface of the material. In particular, during the operation of an aircraft, impact damages caused by bird collisions or falling tools reduce the strength of the aircraft structure. In this study, after impact damages were applied to CFRP specimens with various impact energies and impactor diameters, the compressive residual strength of the impact-damaged specimen was evaluated by performing a compression test. Furthermore, a prediction model for the compressive residual strength is proposed according to the variation in the impact energy by comparing the test results.

탄소섬유강화 복합재료는 일반적으로 압축하중과 재료의 면에 수직한 방향의 충격에 매우 취약하다는 단점을 가지고 있다. 특히 항공기의 운항 중 조류와의 충돌이나 정비 중 공구의 낙하로 인한 충격손상은 항공기 구조물의 강도저하의 원인이 된다. 따라서 본 연구에서는 복합재료(CFRP) 시험편에 충격에너지와 충격자 직경을 변화시키면서 충격손상을 가한 후 압축시험을 수행하여 충격후 압축잔류강도를 평가하였으며, 시험 결과를 비교하여 충격에너지에 따른 충격후 압축잔류강도 예측식을 제안하였다.

Keywords

References

  1. Seo, M. K. and Park, S. J., 2010, "Manufacturing Method of Carbon Fibers and Their Application Fields," Polymer Science and Technology, Vol. 21, No. 2, pp. 130-140.
  2. Kang, M. S., Choi, J. H., Kim, S. Y., Koo, J. M. and Seok, C. S., 2010, "Evaluation of Residual Strength of Carbon/Epoxy Laminates Due to Low Velocity Impact Damage," Journal of the Korean Society for Precision Engineering, Vol. 27, No. 2, pp. 102-108.
  3. Choi, J. H., Kang, M. S., Koo, J. M. and Seok, C. S., 2012, "Evaluation of Residual Strength Under Impact Damage in Woven CFRP Composites," Journal of the Korean Society for Precision Engineering, Vol. 29, No. 6, pp. 654-663. https://doi.org/10.7736/KSPE.2012.29.6.654
  4. Caprino, G., 1983, "On the Prediction of Residual Strength for Notched Laminates," Journal of Material Science, Vol. 18, No. 8, pp. 2269-2273. https://doi.org/10.1007/BF00541829
  5. Kang, K. W. and Kim, J. K., 2000, "Impact Damage Behavior and Evaluation of Residual Strength in Plain Woven Glass/Epoxy Composites," The International Journal Key Engineering Materials, Vol. 183-187, pp. 271-276. https://doi.org/10.4028/www.scientific.net/KEM.183-187.271
  6. Kim, J. H. and Kim, M. S., 1994, "A Study on Residual Strength Evaluation and Failure Mechanism for High Velocity Impacted CFRP," Trans. Korean Soc. Mech. Eng. A, Vol. 18, No. 3, pp. 600-611.
  7. Mitrevski, T., Marshall, I. H. and Thomson, R. S., 2006, "The Influence of Impactor Shape on the Damage to Composite Laminates" Composite Structures, Vol. 76, No. 1-2, pp. 116-122. https://doi.org/10.1016/j.compstruct.2006.06.017
  8. Shim, V. P. W. and Yang, L. M., 2005, "Characterization of the Residual Mechanical Properties of Woven Fabric Reinforced Composites After Low-Velocity Impact," International Journal of Mechanical Sciences, Vol. 47, No. 4-5, pp. 647-665. https://doi.org/10.1016/j.ijmecsci.2005.01.014
  9. Choi, J. H., Kang, M. S., Shin, I. H., Koo, J. M. and Seok, C. S., 2010, "Evaluation of Residual Strength in Aircraft Composite Under Impact Damage," Journal of the Korean Society for Precision Engineering, Vol. 27, No. 2, pp. 94-101.
  10. Kim, S. Y.,, Park, H. S., Kang, M. S., Choi, J. H., Koo, J. M., Seok, C. S., 2009, "Evaluation of Failure Strength of Woven CFRP Composite Plate Subject to Axial Load by Tan-Cheng Failure Criterion," Trans. Korean Soc. Mech. Eng. A, Vol.33, No.4, pp. 360-365. https://doi.org/10.3795/KSME-A.2009.33.4.360
  11. ASTM D3410-Standard Test Method for Compressive Properties of Polymer Matrix Composite Materials with Unsupported Gage Section by Shear Loading.
  12. ASTM D695-Standard Test Method for Compressive Properties of Rigid Plastics.
  13. Reeder, J. R., 1995, "Stitching vs A Toughened Matrix; Compression Strength Effects," Journal of Composite Materials, Vol. 29, No. 18, pp. 2464-2487. https://doi.org/10.1177/002199839502901805
  14. Camponeschi, E. T., Gillespie, J. W., and Wilkins, D. J., 1993, "Kink-Band Failure Analysis of Thick Composites in Compression," Journal of Composite Material, Vol. 27, No. 5, pp. 471-490. https://doi.org/10.1177/002199839302700502
  15. Haberle, J. G. and Matthews, F. L., 1993, "The Influence of Test Method on the Compressive Strength of Several Fiber-Reinforced Plastics," Journal of Advanced Materials, Vol. 25, No. 1, pp. 35-45.
  16. Wolfe, A. R., Weiner, M., 2004, "Compression Testing-Comparison of Various Test Methods," American Composites Manufacturers Association October 6-8, Composite 2004 convention and Trade Show.
  17. ASTM D7136-Standard Test Method for Measuring the Damage Resistance of a Fiber Reinforced Polymer Matrix Composite to a Drop Weight Impact Event
  18. Pinho, S. T., Robinson, P. and Iannucci, L., 2006, "Fracture Toughness of the Tensile and Compressive Fibre Failure Modes in Laminated Composites," Composites Science and Technology, Vol. 66, No. 13, pp. 2069-2079. https://doi.org/10.1016/j.compscitech.2005.12.023
  19. Rosen, B.W., 1965 "Mechanics of Composite Strengthening," Fiber Composite Materials. City: American Society for Metals, pp. 37-75.
  20. Barbero, E. J., 2011, "Introduction to Composite Materials Design - 2nd," CRC Press, pp. 121-129.
  21. Papanicolaou, G. C. and Stavropoulos, Chr. D., 1995, "New Approach for Residual Compressive Strength Prediction of Impacted CFRP Laminates," Composites, Vol. 26, pp. 517-523. https://doi.org/10.1016/0010-4361(95)96809-K