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Methods for determination of residual stress in rail

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2018
3761.pdf (490.7Kb)
Authors
Mirković, Nikola
Brajović, Ljiljana
Malović, Miodrag
Conference object (Published version)
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Abstract
The residual stresses in rails are generated during the manufacturing process and have uneven distribution in rail cross section. The residual stress is a part of basic tensile stress in rail foot. For used rail, the residual stress value of 80 MPa is commonly used in the engineering calculations. On the other hand, the standard EN 13674 prescribes residual stress values up to 250 MPa and destructive method using electrical strain gauge for measurement of rail residual stress. Since destructive measurement methods are unsuitable for use in the track, the possible non-destructive in situ methods for measuring of residual stresses in the rails are discussed in this paper. The fundamentals of X-ray diffraction, ultrasonic, magnetic and electromagnetic methods are explained, as well as, their advantages and disadvantages.
Keywords:
railway / residual stress / strain gauge / X-ray diffraction / ultrasonic measurement / magnetic measurement
Source:
Proceedings / XVIII Scientific-expert conference on railways - RAILCON 18, october 11-12, 2018, Niš, 2018, 113-116
Publisher:
  • Faculty of Mechanical Engineering, Niš
Funding / projects:
  • Research of technical-technological, staff and organizational capacity of Serbian Railways, from the viewpoint of current and future European Union requirements (RS-36012)

ISBN: 978-86-6055-105-6

[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_technorep_3764
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3764
Collections
  • Radovi istraživača (Inovacioni centar) / Researchers’ publications (Innovation Centre)
Institution/Community
Inovacioni centar
TY  - CONF
AU  - Mirković, Nikola
AU  - Brajović, Ljiljana
AU  - Malović, Miodrag
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3764
AB  - The residual stresses in rails are generated during the manufacturing process and have uneven distribution in rail cross section. The residual stress is a part of basic tensile stress in rail foot. For used rail, the residual stress value of 80 MPa is commonly used in the engineering calculations. On the other hand, the standard EN 13674 prescribes residual stress values up to 250 MPa and destructive method using electrical strain gauge for measurement of rail residual stress. Since destructive measurement methods are unsuitable for use in the track, the possible non-destructive in situ methods for measuring of residual stresses in the rails are discussed in this paper. The fundamentals of X-ray diffraction, ultrasonic, magnetic and electromagnetic methods are explained, as well as, their advantages and disadvantages.
PB  - Faculty of Mechanical Engineering, Niš
C3  - Proceedings / XVIII Scientific-expert conference on railways - RAILCON 18, october 11-12, 2018, Niš
T1  - Methods for determination of residual stress in rail
EP  - 116
SP  - 113
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3764
ER  - 
@conference{
author = "Mirković, Nikola and Brajović, Ljiljana and Malović, Miodrag",
year = "2018",
abstract = "The residual stresses in rails are generated during the manufacturing process and have uneven distribution in rail cross section. The residual stress is a part of basic tensile stress in rail foot. For used rail, the residual stress value of 80 MPa is commonly used in the engineering calculations. On the other hand, the standard EN 13674 prescribes residual stress values up to 250 MPa and destructive method using electrical strain gauge for measurement of rail residual stress. Since destructive measurement methods are unsuitable for use in the track, the possible non-destructive in situ methods for measuring of residual stresses in the rails are discussed in this paper. The fundamentals of X-ray diffraction, ultrasonic, magnetic and electromagnetic methods are explained, as well as, their advantages and disadvantages.",
publisher = "Faculty of Mechanical Engineering, Niš",
journal = "Proceedings / XVIII Scientific-expert conference on railways - RAILCON 18, october 11-12, 2018, Niš",
title = "Methods for determination of residual stress in rail",
pages = "116-113",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3764"
}
Mirković, N., Brajović, L.,& Malović, M.. (2018). Methods for determination of residual stress in rail. in Proceedings / XVIII Scientific-expert conference on railways - RAILCON 18, october 11-12, 2018, Niš
Faculty of Mechanical Engineering, Niš., 113-116.
https://hdl.handle.net/21.15107/rcub_technorep_3764
Mirković N, Brajović L, Malović M. Methods for determination of residual stress in rail. in Proceedings / XVIII Scientific-expert conference on railways - RAILCON 18, october 11-12, 2018, Niš. 2018;:113-116.
https://hdl.handle.net/21.15107/rcub_technorep_3764 .
Mirković, Nikola, Brajović, Ljiljana, Malović, Miodrag, "Methods for determination of residual stress in rail" in Proceedings / XVIII Scientific-expert conference on railways - RAILCON 18, october 11-12, 2018, Niš (2018):113-116,
https://hdl.handle.net/21.15107/rcub_technorep_3764 .

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