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Effect of residual stresses on the fatigue lifetime of railway axle

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F17%3A00481285" target="_blank" >RIV/68081723:_____/17:00481285 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1016/j.prostr.2017.07.005" target="_blank" >http://dx.doi.org/10.1016/j.prostr.2017.07.005</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.prostr.2017.07.005" target="_blank" >10.1016/j.prostr.2017.07.005</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Effect of residual stresses on the fatigue lifetime of railway axle

  • Original language description

    The operation of railway axles should fulfill at least two main demands: safety and low operation costs. A significant part of operation costs is given by the length of regular inspection intervals which should reveal potential fatigue cracks in railway axle. The detection of cracks is of a probabilistic nature, therefore their detection is not ensured in all cases. For the safe operation of trains, an existence of potential initial crack should be considered on the axle surface and residual fatigue lifetime should be conservatively determined for this case. Reliable procedure of residual fatigue lifetime estimation should take into account real axle geometry, material characteristics and loading of the railway axle. This paper shows methodology for determination of residual fatigue lifetime (RFL) based on the fracture mechanics approach, taking into account real spectrum of the loading cycles, existence of press-fitted wheels and surface residual stresses given by the thermo-mechanical surface treatment of the railway axle. It is demonstrated that the effect of the residual stresses is significant and should not be neglected in the numerical estimation of residual fatigue lifetime of the axle.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20306 - Audio engineering, reliability analysis

Result continuities

  • Project

    <a href="/en/project/LM2015069" target="_blank" >LM2015069: Infrastructure for Study and Application of Advanced Materials</a><br>

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2017

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    ESIS TC24 Workshop 'Integrity of Railway Structures'

  • ISBN

  • ISSN

    2452-3216

  • e-ISSN

  • Number of pages

    6

  • Pages from-to

    42-47

  • Publisher name

    Elsevier

  • Place of publication

    Amsterdam

  • Event location

    Leoben

  • Event date

    Oct 24, 2016

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article

    000418401700006