Publication detail

Comparison of Different Load Spectra on Residual Fatigue Lifetime of Railway Axle

POKORNÝ, P. NÁHLÍK, L. HUTAŘ, P.

Original Title

Comparison of Different Load Spectra on Residual Fatigue Lifetime of Railway Axle

Type

journal article in Web of Science

Language

English

Original Abstract

The railway axles are subjected to variable amplitude loading. The variability is caused by many different regimes of train operation. The dominant load is caused by the weight of the vehicle, which generates rotary bending during train movement. Nevertheless, there are additional forces, which are generated when train goes through curved track, over crossovers, switches, rail joints etc. Present non-destructive defectoscopy can reliably detect only relatively long cracks (approximately 2 mm long or longer). Hence there is a risk that the existing crack is not detected. Therefore, for conservative estimation of the residual fatigue lifetime the railway axle with a crack should be considered. The behaviour of the crack depends on load spectrum of railway axle. Hence for accurate determination of residual fatigue lifetime of the railway axle is necessary to know representative load spectrum. This paper compares several measured load spectra of railway axles, which are available in the literature. The effect of different load spectra is shown on two widely used materials for railway axles: EA1N and EA4T steels. Obtained results could be used for safer operation of railway axles.

Keywords

railway axle; residual fatigue lifetime, fatigue crack; load spectrum; EA1N; EA4T

Authors

POKORNÝ, P.; NÁHLÍK, L.; HUTAŘ, P.

RIV year

2014

Released

18. 6. 2014

Publisher

Elsevier

ISBN

1877-7058

Periodical

Procedia Engineering

Year of study

74

Number

1

State

Kingdom of the Netherlands

Pages from

313

Pages to

316

Pages count

4

URL

https://www.sciencedirect.com/science/article/pii/S187770581400839X

Full text in the Digital Library

http://hdl.handle.net/11012/194749

BibTex

@article{BUT108375,
  author="Pavel {Pokorný} and Luboš {Náhlík} and Pavel {Hutař}",
  title="Comparison of Different Load Spectra on Residual Fatigue Lifetime of Railway Axle",
  journal="Procedia Engineering",
  year="2014",
  volume="74",
  number="1",
  pages="313--316",
  doi="10.1016/j.proeng.2014.06.269",
  issn="1877-7058",
  url="https://www.sciencedirect.com/science/article/pii/S187770581400839X"
}