Publication result detail

Methodology for estimation of residual stresses in hardened railway axle

DLHÝ, P.; PODUŠKA, J.; POKORNÝ, P.; NÁHLÍK, L.; FAJKOŠ, R.; HUTAŘ, P.

Original Title

Methodology for estimation of residual stresses in hardened railway axle

English Title

Methodology for estimation of residual stresses in hardened railway axle

Type

Paper in proceedings (conference paper)

Original Abstract

Residual stresses play an important role in propagation of potential fatigue cracks and they influence residual fatigue lifetime of railway axles. Essential step for assessment of residual fatigue lifetimes of railway axles is determination of magnitudes and distribution of residual stress in axle. This paper deals with determination of tangential residual stress in hardened railway axle made of EA4T steel. The tangential stress is obtained from difference between uncut and cut slit ring specimens, which are manufactured from considered railway axle. Then, based on theory of curved beams, stress distribution in the cylindrical specimen is calculated. Finally, results from slit ring method are compared with results of neutron and x-ray diffraction.

English abstract

Residual stresses play an important role in propagation of potential fatigue cracks and they influence residual fatigue lifetime of railway axles. Essential step for assessment of residual fatigue lifetimes of railway axles is determination of magnitudes and distribution of residual stress in axle. This paper deals with determination of tangential residual stress in hardened railway axle made of EA4T steel. The tangential stress is obtained from difference between uncut and cut slit ring specimens, which are manufactured from considered railway axle. Then, based on theory of curved beams, stress distribution in the cylindrical specimen is calculated. Finally, results from slit ring method are compared with results of neutron and x-ray diffraction.

Keywords

Residual stress, Slit ring method, Finite element method, Railway axle

Key words in English

Residual stress, Slit ring method, Finite element method, Railway axle

Authors

DLHÝ, P.; PODUŠKA, J.; POKORNÝ, P.; NÁHLÍK, L.; FAJKOŠ, R.; HUTAŘ, P.

RIV year

2021

Released

26.06.2019

Book

Procedia Structural Integrity

ISBN

2452-3216

Periodical

Procedia Structural Integrity

Volume

23

Number

1

State

Republic of Italy

Pages from

185

Pages to

190

Pages count

6

BibTex

@inproceedings{BUT170520,
  author="Pavol {Dlhý} and Jan {Poduška} and Pavel {Pokorný} and Luboš {Náhlík} and Rostislav {Fajkoš} and Pavel {Hutař}",
  title="Methodology for estimation of residual stresses in hardened railway axle",
  booktitle="Procedia Structural Integrity",
  year="2019",
  journal="Procedia Structural Integrity",
  volume="23",
  number="1",
  pages="185--190",
  doi="10.1016/j.prostr.2020.01.084",
  issn="2452-3216"
}