Journal Published Online: 13 October 2014
Volume 43, Issue 5

Investigation of Continuously Welded Rail of Ballastless Longitudinal Stress Distribution of Rail Break

CODEN: JTEVAB

Abstract

A three-dimensional ballastless track model was established using a finite element method to simulate the rail condition before and after rail break. The distribution of the rail longitudinal stress was analyzed under certain thermal stress. In addition, experiments were also conducted in order to validate the simulation results using rail longitudinal stress test equipment. It was found that the simulation results agreed reasonably well with the experimental results. The tests show that the simulation results could correctly predict the longitudinal stress distribution in the rail. Finally, rail longitudinal stress distributions under different thermal stress were calculated using this model; this is helpful for future application to determine when and where there may be a rail break.

Author Information

Wang, Ke
Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian Univ. of Technology, Liaoning, Dalian, CN
Liu, Chong
Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian Univ. of Technology, Liaoning, Dalian, CN Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education, Dalian Univ. of Technology, Liaoning, Dalian, CN
Wang, Dazhi
Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian Univ. of Technology, Liaoning, Dalian, CN Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education, Dalian Univ. of Technology, Liaoning, Dalian, CN
Liang, Junsheng
Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian Univ. of Technology, Liaoning, Dalian, CN Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education, Dalian Univ. of Technology, Liaoning, Dalian, CN
Ren, Tongqun
Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian Univ. of Technology, Liaoning, Dalian, CN Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education, Dalian Univ. of Technology, Liaoning, Dalian, CN
Zhang, Lihua
Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian Univ. of Technology, Liaoning, Dalian, CN
Li, Liang
Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian Univ. of Technology, Liaoning, Dalian, CN
Pages: 6
Price: $25.00
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Stock #: JTE20130276
ISSN: 0090-3973
DOI: 10.1520/JTE20130276