Influence of Initial Inclined Surface Crack on Estimated Residual Fatigue Lifetime of Railway Axle

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F16%3A00466362" target="_blank" >RIV/68081723:_____/16:00466362 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26210/17:PU140217

Výsledek na webu

<a href="http://dx.doi.org/10.1142/S1756973716400072" target="_blank" >http://dx.doi.org/10.1142/S1756973716400072</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1142/S1756973716400072" target="_blank" >10.1142/S1756973716400072</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of Initial Inclined Surface Crack on Estimated Residual Fatigue Lifetime of Railway Axle

Popis výsledku v původním jazyce

Railway axles are subjected to cyclic loading which can lead to fatigue failure. For safenoperation of railway axles a damage tolerance approach taking into account a possiblendefect on railway axle surface is often required. The contribution deals with an estimationnof residual fatigue lifetime of railway axle with initial inclined surface crack. 3D numericalnmodel of inclined semi-elliptical surface crack in railway axle was developed and itsncurved propagation through the axle was simulated by finite element method. Presence ofnpress-fitted wheel in the vicinity of initial crack was taken into account. A typical loadingnspectrum of railway axle was considered and residual fatigue lifetime was estimated bynNASGRO approach. Material properties of typical axle steel EA4T were considered innnumerical calculations and lifetime estimation.

Název v anglickém jazyce

Influence of Initial Inclined Surface Crack on Estimated Residual Fatigue Lifetime of Railway Axle

Popis výsledku anglicky

Railway axles are subjected to cyclic loading which can lead to fatigue failure. For safenoperation of railway axles a damage tolerance approach taking into account a possiblendefect on railway axle surface is often required. The contribution deals with an estimationnof residual fatigue lifetime of railway axle with initial inclined surface crack. 3D numericalnmodel of inclined semi-elliptical surface crack in railway axle was developed and itsncurved propagation through the axle was simulated by finite element method. Presence ofnpress-fitted wheel in the vicinity of initial crack was taken into account. A typical loadingnspectrum of railway axle was considered and residual fatigue lifetime was estimated bynNASGRO approach. Material properties of typical axle steel EA4T were considered innnumerical calculations and lifetime estimation.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Journal of Multiscale Modelling

ISSN

1756-9737

e-ISSN

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Svazek periodika

7

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

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Kód UT WoS článku

000389659500003

EID výsledku v databázi Scopus

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