|Table of Contents|

Analysis on rail wear and crack initiation and recommendation on rail selection in urban rail transit(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2018年04期
Page:
82-89
Research Field:
道路与铁道工程
Publishing date:

Info

Title:
Analysis on rail wear and crack initiation and recommendation on rail selection in urban rail transit
Author(s):
ZHOU Yu;  MU Dong-sheng;  KUANG Di-feng;  ZHENG Xiao-feng;  HAN Yan-bin
Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University, Shanghai 201804, China
Keywords:
urban rail transit;  rail;  rolling contact fatigue;  wear;  wheel-rail hardness match
PACS:
U491.51
DOI:
-
Abstract:
The theory of rolling contact fatigue(RCF)crack prediction based on the energy density method and critical plane method, and wear prediction theory based on the Archard method were analyzed, a prediction model of the coexistence of RCF crack initiation and wear growth in rails of urban rail transit(URT)was presented. The RCF crack initiation life, corresponding rail profile evolution and wear growth rate were predicted for three kinds of the rails with different hardnesses, named U71Mn as-rolled, U75V as-rolled, and U75V heat-treated rails that were commonly used in URT. The development characteristics of the fatigue crack initiation and wear growth were analyzed. Based on the shakedown limit theory, according to the common gradients and type ER9 wheel, the rail selection suggestion for URT was proposed considering the hardness match between the wheel and rail. Analysis result shows that the RCF crack initiation lifes of the rails prolong and the wear growth rates reduce with the increase of the rail hardness. Compared with those of U71Mn as-rolled rail, the wear growth rates of the U75V as-rolled and heat-treated rails reduce by 3.2% and 12.1%, respectively, and their crack initiation lifes prolong by 14.8% and 31.1% respectively. The materials of three kinds of rails with different hardnesses are all within the elastic shakedown limit under the common gradients condition in URT, but they will tend to the plastic shakedown limit with the increase of the gradient. Given the hardness match of the ER9 wheel, it is recommended that the hardness of the rail surface should be higher than that of the wheel tread. The wheel-rail hardness ratios are 0.87-1.04 for U75V as-rolled rail and ER9 wheel, and 0.71-0.84 for U75V heat-treated rail and ER9 wheel, respectively. Both U75V rails can be adapted to the URT system in China. 2 tabs, 8 figs, 26 refs.

References:


[1] KALOUSEK J, MAGEL E. Achieving a balance: the “magic” wear rate[J]. Railway Track and Structures, 1997, 95(5): 50-53.
[2] MAGEL E, RONEY M, KALOUSEK J, et al. The blending of theory and practice in modern rail grinding[J]. Fatigue and Fracture of Engineering Materials and Structures, 2003, 26(10): 921-929.
[3] ZHOU Yu, WANG Shao-feng, WANG Tian-yi, et al. Field and laboratory investigation of the relationship between rail head check and wear in a heavy-haul railway[J]. Wear, 2014, 315(1/2): 68-77.
[4] FLETCHER D I, BEYNON J H. Equilibrium of crack growth and wear rates during unlubricated rolling-sliding contact of pearlitic rail steel[J]. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2000, 214(2): 93-105.
[5] ZHONG W, HU J J, SHEN P, et al. Experimental investigation between rolling contact fatigue and wear of high-speed and heavy-haul railway and selection of rail material[J]. Wear, 2011, 271(9/10): 2485-2493.
[6] FRANKLIN F J, WIDIYARTA I, KAPOOR A. Computer simulation of wear and rolling contact fatigue[J]. Wear, 2001, 251(1-12): 949-955.
[7] FRANKLIN F J, CHUNG T, KAPOOR A. Ratcheting and fatigue-led wear in rail-wheel contact[J]. Fatigue and Fracture of Engineering Materials and Structures, 2003, 26(10): 949-955.
[8] ALWAHDI F, FRANKLIN F J, KAPOOR A. The effect of partial slip on the wear rate of rails[J]. Wear, 2005, 258(7/8): 1031-1037.
[9] FRANKLIN F J, GARNHAM J E, FLETCHER D I, et al. Modelling rail steel microstructure and its effect on crack initiation[J]. Wear, 2008, 265(9/10): 1332-1341.
[10] WIDIYARTA I M, FRANKLIN F J, KAPOOR A. Modelling thermal effects in ratcheting-led wear and rolling contact fatigue[J]. Wear, 2008, 265(9/10): 1325-1331.
[11] TRUMMER G, MARTE C, DIETMAIER P, et al. Modeling surface rolling contact fatigue crack initiation taking severe plastic shear deformation into account[J]. Wear, 2016, 352/353: 136-145.
[12] TRUMMER G, MARTE C, SCHERIAU S, et al. Modeling wear and rolling contact fatigue: parametric study and experimental results[J]. Wear, 2016, 366/367: 71-77.
[13] DAVES W, KUBIN W, SCHERIAU S, et al. A finite element model to simulate the physical mechanisms of wear and crack initiation in wheel/rail contact[J]. Wear, 2016, 366/367: 78-83.
[14] DIRKS B, ENBLOM R. Prediction model for wheel profile wear and rolling contact fatigue[J]. Wear, 2011, 271(1/2): 210-217.
[15] ZHOU Yu, HAN Yan-bin, MU Dong-sheng, et al. Prediction of the coexistence of rail head check initiation and wear growth[J]. International Journal of Fatigue, 2018, 112: 289-300.
[16] 李 伟,曾全君,朱士友,等.地铁钢轨波磨对车辆和轨道动态行为的影响[J].交通运输工程学报,2015,15(1):34-42. LI Wei, ZENG Quan-jun, ZHU Shi-you, et al. Effect of metro rail corrugation on dynamic behaviors of vehicle and track[J]. Journal of Traffic and Transportation Engineering, 2015, 15(1): 34-42.(in Chinese)
[17] 刘 洋,蒋 硕,吴亚平,等.剥离掉块对轮轨滑动接触热弹塑性的影响[J].交通运输工程学报,2016,16(2):46-55. LIU Yang, JIANG Shuo, WU Ya-ping, et al. Effects of spallation on rail thermo-elasto-plasticity in wheel-rail sliding contact[J]. Journal of Traffic and Transportation Engineering, 2016, 16(2): 46-55.(in Chinese)
[18] ZHOU Yu, YU Miao, JIANG Jun-nan. Effects of rail hardness on rail wear and head check initiation[J]. Transportation Research Record, 2016(2545): 55-65.
[19] 周 宇,张 杰,王少峰,等.考虑磨耗的钢轨疲劳裂纹萌生寿命预测仿真[J].铁道学报,2016,38(7):91-97. ZHOU Yu, ZHANG Jie, WANG Shao-feng, et al.Simulation on rail head check initiation life prediction considering rail wear[J]. Journal of the China Railway Society, 2016, 38(7): 91-97.(in Chinese)
[20] KALKER J J. A fast algorithm for the simplified theory of rolling contact[J]. Vehicle System Dynamics, 1982, 11(1):1-13.
[21] DEARIZON J, VERLINDEN O, DEHOMBREUX P. Prediction of wheel wear in urban railway transport: comparison of existing models[J]. Vehicle System Dynamics, 2007, 45(9): 849-866.
[22] AKAMA M. Development of finite element model for analysis of rolling contact fatigue cracks in wheel/rail systems[J]. Quarterly Report of RTRI, 2007, 48(1): 8-14.
[23] ONAL O, CANADINC D, SEHITOGLU H, et al. Investigation of rolling contact crack initiation in bainitic and pearlitic rail steels[J]. Fatigue and Fracture of Engineering Materials and Structures, 2012, 35(11): 985-997.
[24] MINER M A. Cumulative damage in fatigue[J]. Applied Mechanics—Transactions of the ASME, 1945, 13(3): 159-164.
[25] 曾向荣,张格妍,赵晓华.关于城市轨道交通钢轨选型的探讨和建议[J].都市快轨交通,2007,20(2):51-54. ZENG Xiang-rong, ZHANG Ge-yan, ZHAO Xiao-hua.Analysis and proposals on rail type selection for urban rail transit[J]. Urban Rapid Rail Transit, 2007, 20(2): 51-54.(in Chinese)
[26] 金 伟,栾治国,刘小松.杭州地铁1号线项目的轮轨硬度匹配及车轮材质选用[J].铁道车辆,2012,50(7):27-30. JIN Wei, LUAN Zhi-guo, LIU Xiao-song. The wheel-rail hardness matching and wheel material selection for the project of Hangzhou Metro No. 1 Line[J]. Rolling Stock, 2012, 50(7): 27-30.(in Chinese)

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Last Update: 2018-08-30