Fatigue crack propagation in steels for railway axles

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F14%3A00398731" target="_blank" >RIV/68081723:_____/14:00398731 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.592-593.254" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/KEM.592-593.254</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.592-593.254" target="_blank" >10.4028/www.scientific.net/KEM.592-593.254</a>

Result language
angličtina
Original language name
Fatigue crack propagation in steels for railway axles
Original language description
The paper deals with the influence of order of cycles in the loading block on the fatigue crack growth rate in railway axle. The railway axle can include some cracks from manufacturing process or initiated fatigue cracks from previous operation. It is advantageous to know how the crack will behave during further service of the train to ensure its safe operation. The most common approaches describing the fatigue crack growth do not take into account the effects of overload cycles, which enlarge the plastic zone ahead of the crack tip. The enlarged plastic zone generates residual compressive stresses, which cause a retardation of the fatigue crack growth. Finite element numerical calculations were used together with the generalized Willenborg model to determine influence of overload cycles on the increment of fatigue crack growing in railway axles. Real geometry of the axle, the crack front shape and typical loading spectrum were taken into account.
Czech name
—
Czech description
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Project
<a href="/en/project/EE2.3.20.0214" target="_blank" >EE2.3.20.0214: Human Resources Development in the research of physical and material properties of emerging, newly developed and applied engineering materials</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Materials Structure and Micromechanics of Fracture VII
ISBN
978-3-03785-934-6
ISSN
1013-9826
e-ISSN
—
Number of pages
4
Pages from-to
254-257
Publisher name
Trans Tech Publications
Place of publication
Zurich
Event location
Brno
Event date
Jul 1, 2013
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000336694400055

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