Fatigue lifetime estimation of railway axles
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F17%3APU140214" target="_blank" >RIV/00216305:26210/17:PU140214 - isvavai.cz</a>
Alternative codes found
RIV/68081723:_____/17:00481281
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1350630716307506" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1350630716307506</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.engfailanal.2016.12.014" target="_blank" >10.1016/j.engfailanal.2016.12.014</a>
Alternative languages
Result language
angličtina
Original language name
Fatigue lifetime estimation of railway axles
Original language description
The railway axles are subjected to cyclic loading during their operation. Their load is of long-term nature, therefore a real risk of fatigue failure exists. This failure could lead to derailment of the whole train with serious consequences. To prevent such scenario, the railway axles have to be safely removed from operation before their final failure occurs. This paper presents methodology for the residual fatigue lifetime prediction of the railway axle based on the linear elastic fracture mechanics concept. The methodology contains estimation of the critical position of initial crack, prediction of the fatigue crack front shape development during crack propagation, separation of the bending and press-fitting contributions to the axle load, experimental measurement of the crack growth kinetics of EA4T steel and subsequent estimation of the residual fatigue lifetime of railway axle. Part of the presented study is also devoted to the probability aspects of determination of material characteristics describing fatigue crack propagation and retardation effects caused by existence of plastic zone ahead of propagating fatigue crack. Described methodology is already applied in the design process of new railway axles in Bonatrans company. (C) 2016 Elsevier Ltd. All rights reserved.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20301 - Mechanical engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ENGINEERING FAILURE ANALYSIS
ISSN
1350-6307
e-ISSN
1873-1961
Volume of the periodical
2017
Issue of the periodical within the volume
73
Country of publishing house
GB - UNITED KINGDOM
Number of pages
19
Pages from-to
139-157
UT code for WoS article
000396773100011
EID of the result in the Scopus database
2-s2.0-85008414312