Detail publikace

Influence of extension of load spectrum on estimation of residual fatigue lifetime of railway axle

POKORNÝ, P. HUTAŘ, P. NÁHLÍK, L.

Originální název

Influence of extension of load spectrum on estimation of residual fatigue lifetime of railway axle

Typ

článek v časopise ve Scopus, Jsc

Jazyk

angličtina

Originální abstrakt

Railway axles are subjected to cyclic amplitude loading which can lead to fatigue failure. For safe operation of railway axles a damage tolerance approach taking into account a possible defect in railway axle is often required. Because of different operation regimes of trains (fast/slow ride, ride on straight track, on curved track, over switches etc.) the load amplitude of axle is not constant. The variability of load is defined by a load spectrum, which is determined experimentally by measuring of load in service conditions. Even though the load spectrum is measured on several hundreds or thousands of operation kilometres, the railway axles are in operation much longer time (often tens of years). Therefore, some load amplitudes higher than ones measured in the test can occur during a long-term axle service. The contribution presented deals with the effect of extension of load spectrum by rare high load amplitudes, which can occur during long-term operation, on residual fatigue lifetime of railway axles.

Klíčová slova

Fatigue crack; Load spectrum; Overload; Railway axle

Autoři

POKORNÝ, P.; HUTAŘ, P.; NÁHLÍK, L.

Vydáno

1. 12. 2016

Nakladatel

Trans Tech Publications Ltd

ISSN

1012-0394

Periodikum

Solid State Phenomena

Ročník

258

Číslo

-

Stát

Švýcarská konfederace

Strany od

607

Strany do

610

Strany počet

4

URL

https://www.scientific.net/SSP.258.607

BibTex

@article{BUT177132,
  author="Pavel {Pokorný} and Pavel {Hutař} and Luboš {Náhlík}",
  title="Influence of extension of load spectrum on estimation of residual fatigue lifetime of railway axle",
  journal="Solid State Phenomena",
  year="2016",
  volume="258",
  number="-",
  pages="607--610",
  doi="10.4028/www.scientific.net/SSP.258.607",
  issn="1012-0394",
  url="https://www.scientific.net/SSP.258.607"
}