Processing...
Processing...
Inmagic
®
Presto
Version 5.5 Build 151
Inmagic
®
Presto
Copyright © 2005-2021 by Lucidea Technologies Corp., Richmond BC Canada. All rights reserved.
Inmagic® and the Inmagic logo are registered trademarks of Lucidea Technologies Corp.
Unauthorized duplication or distribution is prohibited.
Other brand and product names are trademarks or registered trademarks of their respective holders. Use of any other product name does not imply endorsement of that product by Inmagic.
Third-party Licenses
Processing...
Processing...
Title
Critical stress distribution associated with nonmetallic inclusions in high-speed train wheels
Author
Tovar, E
Zhu, H
Deng, G
Afridi, H
Li, H
Li, S
Zhao, X
Wei, H
Affiliation
Faculty of Engineering and Information Sciences, University of Wollongong, New South Wales, Australia
Taiyuan Heavy Industry Railway Transit Equipment Co. Ltd., Shanxi Province, China
Publication Date
2022
Conference
12th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, 4-7 September 2022, Melbourne, Victoria, Australia
Abstract
Nonmetallic inclusions or their chain-like distribution could cause shattered rims, a typical rolling contact fatigue failure of train wheels. The advanced experiment and FEM simulation strategy were developed to investigate the critical stress distribution associated with nonmetallic inclusions in high-speed train wheels. It has been found that most of the inclusions in the studied high-speed wheel have a length smaller than 9 µm. Hard inclusions (Al2O3) cause a significant stress concentration at the poles, while soft inclusions (MnS) and voids trigger stress concentration at the equator. The inclusion cluster plays an essential role in stress concentration and fatigue performance. If alumina inclusions are chain-likely distributed along the radial direction of the wheel, it presents the risk for crack initiation and fatigue life reduction. Void clusters also potentially cause deep-surface damage to the train wheels.
File - click thumbnail to download
Physical Description
7p.; PDF
Subjects
Railway track
Rolling contact
Wheel
Stress
Wear
Location
ARRB library
Category
Rail Knowledge Bank Index
Infrastructure
Track
Track maintenance
Rail Knowledge Bank Index
Infrastructure
Track
Rail Knowledge Bank Index
Infrastructure
Wheel/rail interaction
Permalink
https://railknowledgebank.com/Presto/pl/MTk4MTRjNDUtNWQ0My00OTBmLTllYWUtZWFjM2U2OTE0ZDY3LjEwMDg4