Detail publikačního výsledku

Methodology for estimation of residual stresses in hardened railway axle

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

Originální název

Methodology for estimation of residual stresses in hardened railway axle

Anglický název

Methodology for estimation of residual stresses in hardened railway axle

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

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

Klíčová slova v angličtině

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

Autoři

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

Rok RIV

2021

Vydáno

26.06.2019

Kniha

Procedia Structural Integrity

ISSN

2452-3216

Periodikum

Procedia Structural Integrity

Svazek

23

Číslo

1

Stát

Italská republika

Strany od

185

Strany do

190

Strany počet

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"
}