Study on the Initiation of Fatigue Cracks Due to Wheel-Rail Impact at Insulated Rail Joints
In this study, we present a method for predicting the initiation of fatigue cracks at insulated rail joints (IRJs). The method includes (1) FE simulation of dynamic wheel/rail interaction at IRJs; (2) analysis on the evolution of wheel/rail contact behavior, and (3) numerical prediction on the initiation life and position of fatigue cracks. To demonstrate the method, we analyzed the crack initiation for a series of rail end intervals. The results indicate that shear loads in the material affects more on the initiation of fatigue cracks at both the surface and subsurface of rail head. Fatigue cracks have a higher likelihood to take place at 0–2 mm below the rail surface of IRJs, with the most dangerous region being at 1 mm below the rail surface. The variation of the rail end interval seldom affects the crack initiation life at the leading rail end of IRJs, whereas it can significantly influence the crack initiation life at the rear rail end.
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- Find a library where document is available. Order URL: http://worldcat.org/isbn/9783030380762
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Supplemental Notes:
- © Springer Nature Switzerland AG 2020. The contents of this paper reflect the views of the authors and do not necessarily reflect the official views or policies of the Transportation Research Board or the National Academy of Sciences.
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Corporate Authors:
Springer International Publishing
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Authors:
- Wei, Zilong
- Liu, Xiubo
- Zhou, Yu
- Jia, Xinyu
- Li, Guoqing
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Conference:
- 26th Symposium of the International Association of Vehicle System Dynamics (IAVSD 2019)
- Location: Gothenburg , Sweden
- Date: 2019-8-12 to 2019-8-16
- Publication Date: 2020-2
Language
- English
Media Info
- Media Type: Web
- Features: References;
- Pagination: pp 744-753
- Monograph Title: Advances in Dynamics of Vehicles on Roads and Tracks: Proceedings of the 26th Symposium of the International Association of Vehicle System Dynamics, IAVSD 2019, August 12-16, 2019, Gothenburg, Sweden
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Serial:
- Lecture Notes in Mechanical Engineering
- Publisher: Springer International Publishing
- ISSN: 2195-4356
- EISSN: 2195-4364
- Serial URL: http://link.springer.com/bookseries/11236
Subject/Index Terms
- TRT Terms: Fatigue cracking; Finite element method; Predictive models; Rail joints; Rolling contact; Shear stress
- Subject Areas: Maintenance and Preservation; Railroads;
Filing Info
- Accession Number: 01902242
- Record Type: Publication
- ISBN: 9783030380762
- Files: TRIS
- Created Date: Dec 15 2023 8:45AM