Field Investigation and Rapid Deterioration Analysis of Heavy Haul Corrugation

Applied Sciences

Hong Xiao¹  Feng Jin¹  Wanting Liu²  Mahantesh M Nadakatti³  Huiting Yue⁴ 

[1] Beijing Key Laboratory of Track Engineering, Beijing Jiaotong University, Beijing 100044, China;China Energy Investment Corporation Baoshen Railway Group Shenshuo Railway Co., Ltd., Yulin 036203, China;Department of Mechanical Engineering, KLS Gogte Institute of Technology, Belagavi 590008, India;Zhengzhou Metro Group Co., Ltd., Zhengzhou 450000, China;

关键词: heavy haul railway;    rail grinding;    rail corrugation;    sharp curve;    fracture mechanics;   

DOI  :  10.3390/app11146317

来源: DOAJ

【 摘 要 】

In this study, the rapid growth of corrugation caused by the bad quality of grinding works and their wavelength, depth, and evolution processes are captured through field measurements. The residual grinding marks left by poor grinding quality lead to further crack accumulation and corrugation deterioration by decreasing plastic resistance in rails. In this case, the average peak-to-peak values of corrugation grow extremely fast, reaching 1.4 μm per day. The finite element method (FEM) and fracture mechanics methodologies were used to analyze the development and trends in rail surface crack deterioration by considering rails with and without grinding marks. Crack propagation trends increase with residual grinding marks, and they are more severe in circular curve lines. To avoid the rapid deterioration of rail corrugation, intersections between grinding marks and fatigue cracks should be avoided.

【 授权许可】

Unknown