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철도차량 대차 적용 유리섬유/에폭시 4-매 주자직 적층 복합재의 인장-압축 피로특성 평가 연구

A Study on the Evaluation of Tension-Compression Fatigue Characteristics of Glass Fiber/Epoxy 4-Harness Satin Woven Laminate Composite for the Railway Bogie Application

  • 전광우 (한밭대학교, 기계설계공학과, 경량구조 및 CAE 실험실) ;
  • 신광복 (한밭대학교, 기계설계공학과) ;
  • 김정석 (한국철도기술연구원)
  • 발행 : 2010.10.30

초록

본 논문은 철도차량 경량화 재질로 적용된 유리섬유/에폭시 4-매 주자직 적층 복합재료의 인장-압축 피로특성을 평가하였다. 유리섬유/에폭시 4-매 주자직 적층 복합재료의 인장-압축 피로시험은 경사, 위사 그리고 ${\pm}45^{\circ}$ 방향으로 적층된 시험편에 대하여 수행하였다. 인장-압축 피로시험은 5Hz의 주파수를 갖으며, 응력비(R)는 -1로 수행하였다. 인장-압축 피로시험 수행 시 압축하중에 의한 시험편의 좌굴을 방지하기 위하여 좌굴방지지그를 설계하고 이를 시험에 적용하였다. 또한, Goodman 선도는 유리섬유/에폭시 4-매 주자직 적층 복합재의 피로특성과 수명을 평가하기 위해 사용하였다. 유리섬유/에폭시 4-매 주자직 적층 복합재료의 인장-압축 피로시험결과 경사방향 적층 복합재의 피로특성이 기존 금속재 대차에 적용되는 SM490에 비하여 우수한 것으로 나타났다.

This paper describes the evaluations of tension-compression fatigue characteristics and life for glass fiber/epoxy laminate composite applied to railway bogie to reduce weight. Test samples of tension-compression fatigue were composed of glass fiber/epoxy 4-harness woven laminate composites with different stacking sequence of warp-direction, fill-direction and ${\pm}45^{\circ}$-direction. The tension-compression fatigue test was conducted with stress ratio (R) of -1 and frequency of 5Hz. Goodman diagram were used to evaluate the fatigue characteristics and life of glass fiber/epoxy 4-harness satin woven laminate composite. Anti-buckling jig was designed to prevent buckling of specimen under compression load. The test results showed that the fatigue characteristics of glass fiber/epoxy 4-harness satin woven laminate composite with stacking sequence of warp-direction had a good performance in comparison with that of SM490 used to conventional metal railway bogie.

키워드

참고문헌

  1. N. Y. Jung, and S. B. Lee, "Light Weight by Application of Aluminum Honeycomb Sandwich Panels in End Door of Rolling Stock," Autumn Conference of The Korean Society of Machine Tool Engineers Conference, 1997, pp. 284-291.
  2. J. S. Koo, and H. J. Cho, "A Method to estimate the Weight-reduction of Hybrid Bodyshells by Material Substitution," The Korean Society for Railway, Vol. 9, No. 6, 2006, pp. 635-643.
  3. T. S. Kwon, H. Y. Lee, and H. Shin, "Introduction to the material substitution design method for the weight reduction of rolling stock carbody," Autumn Conference of The Korean Society for Railway Conference, 2003, pp. 446-454.
  4. K. B. Shin, D. H. Koo, S. H. Han, K. J. Park, " A Study on Material Selection of the Carbody Structure of Korean Tilting Train eXpress(TTX) through the Verification of Design Requirements," Journal of the Korean Society for Railway, Vol. 7, No. 2, 2004, pp. 77-84.
  5. K. B. Shin, B. J. Ryu, J. Y. Lee, S. J. Lee, S. H. Jo, "Evaluation of the Structural Integrity of a Sandwich Composite Train Roof Structure," Autumn Conference of The Korean Society for Railway Conference, 2005, pp. 46-51.
  6. K. B. Shin, B. J. Ryu, J. Y. Lee, S. J. Lee, and S. H. Jo, "A Study on Manufacturing Technology and Evaluation of the Structural Integrity of a Sandwich Composite Train Roof Structure," The Korean Society for Railway, Vol. 9, No. 1, 2006, pp. 46-51.
  7. K. B. Shin, and S. H. Han, "Evaluation of Static Stability of Hybrid Carbody Structures of Korean Tilting Train eXpress Including Degradation Effects of Composite Materials under Ground Environments," The Korean Society for Mechanical Engineers, Vol. 28, No. 6, 2005, pp. 807-815. https://doi.org/10.3795/KSME-A.2004.28.6.807
  8. Y. S. Lee, J. H. Kim, H. C. Lee, K. N. Kil and B. J. Park, "A Study the Application of 3D Sandwich Composite Structures to the Double-deck Light Train Carbody," Journal of the Korean Society for Railway, Vol. 3, No. 2, 2000, pp. 92-99.
  9. G. Belingardi, M. P. Cavtorta and R. Duella, "Material Characterization of a Composite Foam Sandwich for the Front Structure of a High Speed Train," Composite Structures, Vol. 61, 2003, pp. 13-25. https://doi.org/10.1016/S0263-8223(03)00028-X
  10. A. M. Harte, J. F. Mcnamara and I. D. Roddy , "A Multilevel Approach to the Optimization of a Composite Light rail Vehicle Bodyshell," Composite Structures, Vol. 63, 2004, pp. 447-453. https://doi.org/10.1016/S0263-8223(03)00193-4
  11. J. S. Kim, J. C. Jeong, S. H. Cho, and S. I. Seo, "Analytical and Experimental Studies on the Natural Frequency of a Composite Train Carbody," The Korean Society for Mechanical Engineers, Vol. 30, No. 4, 2006, pp. 473-480. https://doi.org/10.3795/KSME-A.2006.30.4.473
  12. H. Y. Ko, K. B. Shin, J. C. Jeong, 2009, "A Study on the Comparison of Structural Performance Test and Analysis for Design Verification of Bimodal Tram Vehicle made of Sandwich Composites," The Korean Society for Railway, Vol. 12, No. 4, pp. 518-525.
  13. H. Y. Ko, K. B. Shin, S. H. Cho, D. H. Kim, 2008, "An Evaluation of Structural Integrity and Crashworthiness of Automatic Guideway Transit (AGT) Vehicle made of Sandwich Composites," The Korean Society of Composite Materials, Vol. 21, No. 5, pp. 15-22.
  14. B. H. Park, N. P. Kim, J. S. Kim, and K. Y. Lee, "Bogie Frame Design Considering Fatigue Strength and Minimize Weight," Autumn Conference of The Korean Society for Railway, 2004, pp. 131-136.
  15. I. S. Yun, S. T. Kwon, J. S. Sun, N. J. Myung, W. H. Chung, T. S. Son, K. K. Kim, and S. C. Kim, "Integrity Evaluation of Bogie Frame by Ultrasonic Fractography Analysis," The Korean Society for Railway, Vol. 3, No. 2, 2000, pp. 112-118.
  16. Maurin. L, J. Boussoir, S. Rougeault, M. Bugaud, P. Ferdinand, A. G. Landrot, Y. H. Grunevald, and T. Chauvin, "FBG-based Smart Composite Bogie for Railway Applications," IEEE Conference, Vol. 1, 2002, pp. 91-94.
  17. S. R. Lee, H. J. Lee, S. W. Han, J. Y. Kim, J. H. Cha, J. Y. Kang, C. K. Park, "Fatigue Design and Fatigue Strength Evaluation of Bogie Frame," Spring Conference of The Korean Society for Railway Conference, 2000, pp. 234-241.
  18. W. J. Kim, S. Y. Song, G. S. Park, H. S. Park, "Evalution of static and fatigue strength applying European standard for the bogie frame of Diesel Multiple Unit," Autumn Conference of The Korean Society for Railway Conference, 2007, pp. 797-804.
  19. R. J. Ming-hwa, J. M. Hsu, D. G. Hwang, 1990, "Fatigue Degradation in Centrally Notched Quasi-Isotropic Laminates," Composite Materials, Vol. 24, pp. 823-838. https://doi.org/10.1177/002199839002400803
  20. S. S. Jang, 2007, "A Reliability Analysis on the Fatigue Life Prediction in Carbon/Epoxy Composite Material," The Korean Society of Industrial Application, Vol. 10, No. 3, pp. 143-147.
  21. E. K. Gamstedt, and B. A. Sjoegren, "Micromechanisms in tension-compression fatigue of composite laminates containing transverse plies," Composites Science and Technology, Vol. 59, 1999, pp. 167-178. https://doi.org/10.1016/S0266-3538(98)00061-X
  22. J. H. Byun, "Prediction of Engineering Constants for Plain and 8-Harness Satin Woven Composites," The Korean Society for Mechanical Engineers, Vol. 21, No. 11, 1997, pp. 1757-1764.
  23. American Society for Testing Materials : ASTM D 3039, Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials.
  24. American Society for Testing Materials : ASTM D 3410, Standard Test Method for Compressive Properties of Polymer Matrix Composite Materials with Unsupported Gage Section by Shear Loading.
  25. S. Y. Kim, Y. S. Kim, H. W. Kwon, J.H. Choi, J. M. Koo, and C. S. Seok, "Prediction of Fatigue Life for Holenotched Weave CFRP Plate," Spring Conference of The Korean Society of Composite Materials, 2010, pp. 128-133.
  26. American Society for Testing Materials : ASTM D 3479, Standard Test Method for Tension-Tension Fatigue of Polymer Matrix Composite Materials.
  27. International Organization for Standardization : ISO 13003, Fibre reinforced plastics Determination of fatigue properties under cyclic loading conditions.
  28. Hwang, W. and han, K. S., "Fatigue of Composites Fatigue Modulus Concept and Life Prediction," Journal of Composite Materials, Vol. 20, 1986, pp. 154-165. https://doi.org/10.1177/002199838602000203
  29. J. S. Park, C. S. Seok, J. M. Koo, J. H. S, B. C. Goo, "Fatigue Characteristics of SM490A Welded Joints for Bogie Frame," Journal of Korea Society for Precision Engineering, Vol. 21, 2004, pp. 146-153.
  30. S. Mall, D.W. Katwyk, R.L. Bolick, A.D. Kelkar, D.C. Davis, "Tension-.compression fatigue behavior of a H-VARTM manufactured unnotched and notched carbon/epoxy composite," Composite Structures, Vol. 90, 2009, pp. 201-207. https://doi.org/10.1016/j.compstruct.2009.03.015
  31. H. Bryan., "Fatigue Composite Materials," CRC Press, 2003.
  32. Bolick. R. L, "A comparative study of unstitched, stitched, and Z-pinned plain woven composites under fatigue loading," PhD dissertation, North Carolina Agricultural and Technical State University, 2005.
  33. B. C. Goo, and S. Y. Yang, "Fatigue Life Prediction Considering Residual Stress Relaxation," International Congress of Theoretical and Applied Mechanics, 2004.
  34. Japanese Industrial Standard : JIS E 4702, Truck frames for railway rolling stock.

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