Detail publikačního výsledku

Influence of crack retardation on fatigue crack propagation in steels for railway axles

NÁHLÍK, L.; POKORNÝ, P.; HUTAŘ, P.

Originální název

Influence of crack retardation on fatigue crack propagation in steels for railway axles

Anglický název

Influence of crack retardation on fatigue crack propagation in steels for railway axles

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The railway axles are subjected to cyclic loading, therefore there is a risk of fatigue failure. For reason that possible crack could not be detected by non-destructive testing method an existing crack in the railway axle must be considered. This is conservative approach commonly used in applications where potential fatigue failure has unaccepted consequences. This paper deals with retardation effect caused by overload cycles and compares results obtained by no retardation approach and results obtained by generalized Willenborg model, which takes into account the retardation effects due to plastic zone around the crack tip. Results obtained can contribute to the better understanding of fatigue crack behavior in railway axles.

Anglický abstrakt

The railway axles are subjected to cyclic loading, therefore there is a risk of fatigue failure. For reason that possible crack could not be detected by non-destructive testing method an existing crack in the railway axle must be considered. This is conservative approach commonly used in applications where potential fatigue failure has unaccepted consequences. This paper deals with retardation effect caused by overload cycles and compares results obtained by no retardation approach and results obtained by generalized Willenborg model, which takes into account the retardation effects due to plastic zone around the crack tip. Results obtained can contribute to the better understanding of fatigue crack behavior in railway axles.

Klíčová slova

railway axle, fatigue crack, generalized Willenborg model, crack retardation

Klíčová slova v angličtině

railway axle, fatigue crack, generalized Willenborg model, crack retardation

Autoři

NÁHLÍK, L.; POKORNÝ, P.; HUTAŘ, P.

Rok RIV

2017

Vydáno

02.03.2014

Nakladatel

11th International Fatigue Congress

Místo

Zurich

ISBN

978-3-03835-008-8

Kniha

11th International Fatigue Congress

Strany od

351

Strany do

356

Strany počet

6

BibTex

@inproceedings{BUT104825,
  author="Luboš {Náhlík} and Pavel {Pokorný} and Pavel {Hutař}",
  title="Influence of crack retardation on fatigue crack propagation in steels for railway axles",
  booktitle="11th International Fatigue Congress",
  year="2014",
  pages="351--356",
  publisher="11th International Fatigue Congress",
  address="Zurich",
  doi="10.4028/www.scientific.net/AMR.891-892.351",
  isbn="978-3-03835-008-8"
}