Contact defects initiation in railroad wheels ? Experience, experiments and modelling
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F11%3A86079651" target="_blank" >RIV/61989100:27230/11:86079651 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27640/11:86079651
Result on the web
<a href="http://dx.doi.org/10.1016/j.wear.2010.10.053" target="_blank" >http://dx.doi.org/10.1016/j.wear.2010.10.053</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.wear.2010.10.053" target="_blank" >10.1016/j.wear.2010.10.053</a>
Alternative languages
Result language
angličtina
Original language name
Contact defects initiation in railroad wheels ? Experience, experiments and modelling
Original language description
Main results of comprehensive research of rolling contact defects initiation are presented in this contribution. Description of own experimental study has been preceded by practical experience of a wheelset producer. A line rolling/sliding contact case with creepage of 0.75% was investigated using a unique test machine. The rail disc was made from Class C steel grade while the wheel disc from R7T steel grade. Unlike the standard twin-disc test, the diameter of the rail disc was 2.6 times bigger than thediameter of the wheel disc. Development of contact cracks and accumulation of shear strain for the wheel material R7T during rolling contact loading were namely evaluated. On the basis of test conditions, simulation by FEM was performed. As the result,very good prediction of shear strain accumulation was achieved using the AbdelKarim-Ohno cyclic plasticity model. The proposed computational strategy can be used for fatigue life prediction till initiation of a crack caused by low-cycle f
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JL - Fatigue and fracture mechanics
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Wear
ISSN
0043-1648
e-ISSN
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Volume of the periodical
271
Issue of the periodical within the volume
1
Country of publishing house
CH - SWITZERLAND
Number of pages
12
Pages from-to
174-185
UT code for WoS article
000291777600023
EID of the result in the Scopus database
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