Influence of different crack propagation rate descriptions on the residual fatigue lifetime of railway axles
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F15%3A00449783" target="_blank" >RIV/68081723:_____/15:00449783 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.627.469" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/KEM.627.469</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.627.469" target="_blank" >10.4028/www.scientific.net/KEM.627.469</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Influence of different crack propagation rate descriptions on the residual fatigue lifetime of railway axles
Popis výsledku v původním jazyce
The paper deals with an estimation of the residual fatigue lifetime of the railway axles. The railway axles can include some cracks either from manufacturing process or from previous loading operation. Because of cyclic loading of the railway axles thereis a risk of fatigue failure of the railway axles with unacceptable consequences. Based on this fact, for conservative establishment of the residual fatigue lifetime of the railway axle is necessary to consider an existing crack in the railway axle during design process. The fatigue lifetime estimation of railway axles is very sensitive to used crack propagation rate description (e.g. v-K curve). Typical bending of this curve (knee) can be found in the vicinity of the threshold value in fatigue crack propagation rate dependence (typically v-K curve expressed in log-log coordinates). For accurate estimation of residual fatigue lifetime of the railway axle is necessary to use approximation of v-K curve that takes into account existence o
Název v anglickém jazyce
Influence of different crack propagation rate descriptions on the residual fatigue lifetime of railway axles
Popis výsledku anglicky
The paper deals with an estimation of the residual fatigue lifetime of the railway axles. The railway axles can include some cracks either from manufacturing process or from previous loading operation. Because of cyclic loading of the railway axles thereis a risk of fatigue failure of the railway axles with unacceptable consequences. Based on this fact, for conservative establishment of the residual fatigue lifetime of the railway axle is necessary to consider an existing crack in the railway axle during design process. The fatigue lifetime estimation of railway axles is very sensitive to used crack propagation rate description (e.g. v-K curve). Typical bending of this curve (knee) can be found in the vicinity of the threshold value in fatigue crack propagation rate dependence (typically v-K curve expressed in log-log coordinates). For accurate estimation of residual fatigue lifetime of the railway axle is necessary to use approximation of v-K curve that takes into account existence o
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
JL - Únava materiálu a lomová mechanika
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/EE2.3.30.0063" target="_blank" >EE2.3.30.0063: Nadaní postdoktorandi pro vědeckou excelenci v oblasti fyziky materiálů</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2015
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
Advances in Fracture and Damage Mechanics XIII
ISBN
978-3-03835-235-8
ISSN
1013-9826
e-ISSN
—
Počet stran výsledku
4
Strana od-do
469-472
Název nakladatele
Trans Tech publications
Místo vydání
Zürich
Místo konání akce
S?o Miguel Island, Azores
Datum konání akce
23. 9. 2014
Typ akce podle státní příslušnosti
WRD - Celosvětová akce
Kód UT WoS článku
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