Crack path modelling in railway wheel under rolling contact fatigue

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F15%3APU117363" target="_blank" >RIV/00216305:26210/15:PU117363 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.kme.zcu.cz/acm/acm/article/view/291/337" target="_blank" >http://www.kme.zcu.cz/acm/acm/article/view/291/337</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Crack path modelling in railway wheel under rolling contact fatigue

Popis výsledku v původním jazyce

A computational model of crack path for two-dimensional primary crack situated in a railway wheel rim is designed. The railway wheel rim is placed on thewheel disc of railway wheel with interference fit. Crack behaviour is analysed in the case of rectilinear ride of a train under rolling contact fatigue. Plank and Kuhn criterion is used to decide whether crack will either kink and follow mode I controlled (tensile mode) path, or it will propagate coplanar mode II controlled (shear mode). If mode I controlled crack growth is more probable then a direction of crack propagation is predicted using the maximum tensile stress range criterion. In this way a relationship between stress intensity factors and crack geometry is obtained. For comparison, crack behaviour in a solid railway wheel which is not subjected to pre-stress loading is also analysed. In the latter case the contact forces in the wheel-rail contact are considered to have i) only normal part ii) both the normal part and tangential part.

Název v anglickém jazyce

Crack path modelling in railway wheel under rolling contact fatigue

Popis výsledku anglicky

A computational model of crack path for two-dimensional primary crack situated in a railway wheel rim is designed. The railway wheel rim is placed on thewheel disc of railway wheel with interference fit. Crack behaviour is analysed in the case of rectilinear ride of a train under rolling contact fatigue. Plank and Kuhn criterion is used to decide whether crack will either kink and follow mode I controlled (tensile mode) path, or it will propagate coplanar mode II controlled (shear mode). If mode I controlled crack growth is more probable then a direction of crack propagation is predicted using the maximum tensile stress range criterion. In this way a relationship between stress intensity factors and crack geometry is obtained. For comparison, crack behaviour in a solid railway wheel which is not subjected to pre-stress loading is also analysed. In the latter case the contact forces in the wheel-rail contact are considered to have i) only normal part ii) both the normal part and tangential part.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

20306 - Audio engineering, reliability analysis

Projekt

<a href="/cs/project/LO1202" target="_blank" >LO1202: NETME CENTRE PLUS</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Applied andComputational Mechanics

ISSN

1802-680X

e-ISSN

2336-1182

Svazek periodika

9

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

24

Strana od-do

103-126

Kód UT WoS článku

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EID výsledku v databázi Scopus

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