Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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A Study on Rolling Contact Fatigue of Rail by Damage Mechanics

손상역학에 의한 레일의 구름접촉피로 연구

  • 강성수 (전주대학교 기계자동차공학과)
  • Published : 2008.09.30
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Abstract

The rail/wheel rolling contact affects the microstructure in the surface layer of rail. Recently. continuum damage mechanics allows us to describe the microprocesses involved during the straining of materials and structures at the macroscale. Elastic and plastic strains. the corresponding hardening effects are generally accepted to be represented by global continuum variables. The purpose of continuum damage mechanics is to introduce the possibility of describing the coupling effects between damage processes and the stress-strain behavior of materials. In this study. the continuum damage mechanics caused by elastic deformation was briefly introduced and applied to the fatigue damage of the rails under the condition of cyclic loading. The material parameter for damage analysis was first determined so that it could reproduce the life span under the compressive loading in the vicinity of fatigue limit. Some numerical studies have been conducted to show the validity of the present computational mechanics analysis.

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References

  1. O. C. Zienkiewicz and R. L. Taylor, 'The Finite element method,' McGraw-Hill, 4th edition, 1989
  2. J. Lemaitre, 'A course on damage mechanics,' Springer, 2nd edition, 1996
  3. D. Kracjinovic, 'Damage mechanics' North-Holland, 1996
  4. J. Skrzypek and W. Ganczarski, 'Modelling of Material Damage & Failure of Structures (Theory and Applications)', Springer, 1999
  5. 서사범, '레일 손상의 예방 대책', 한국철도학회지, 제8권, 제1호, pp.33-37, 2005
  6. 김철수, 여운기, 김영균, '저온하에서 레일강의 피로균열진전거동', 한국철도학회, 2003년도 추계학술대회논문집(III), pp.85-90, 2003
  7. Y. Inoue, Y. Satoh and K. Kashiwaya, 'Crystallographical Elucidation in Deformed Layers under Running Surface of Rail,' Railway Technical Research Institute(RTRI) Report, Vol. 6, No. 12, pp.59-68, 1992
  8. J. L. Chaboche and G. Rousselier, 'On the plastic and viscoplastic consitutive equations (Part I: Rules developed with internal variable concept),' Journal of Pressure Vessel Technology (Transactions of ASME), 150, pp.153-158, 1983
  9. F. P. E. Dunne and D. R. Hayhurst, 'Continuum damage based consitutive equations for copper under high temperature creep and cyclic plasticity,' Proceedings of R. Soc. Lond. A, 437, pp.545-566, 1992 https://doi.org/10.1098/rspa.1992.0079
  10. L. Lemaitre and J. L. Chaboche, 'Mechanics of solid materials,' Cambridge university press, 1990
  11. D. J. R. Owen and E. Hinton, 'Finite element in plasticity (Theory and practice),' Pineridge press, 1980
  12. Y. Toi, K. Kobashi and T. Iezawa, 'Finite element analysis of thermal elasto-plastic behaviors of bridge girders in hot-dip galvanization,' Computers and structures, Vol. 53, No. 6, pp.1307-1316, 1994 https://doi.org/10.1016/0045-7949(94)90398-0
  13. J. J. Kalker, 'Three-Dimensional Elastic Bodies in Rolling Contact,' Kluwer Academic Publisher, 1990