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Naslov:Numerical procedure for predicting the rolling contact fatigue crack initiation
Avtorji:ID Šraml, Matjaž (Avtor)
ID Flašker, Jože (Avtor)
ID Potrč, Iztok (Avtor)
Datoteke:URL http://dx.doi.org/10.1016/S0142-1123(03)00019-7
 
Jezik:Angleški jezik
Vrsta gradiva:Neznano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Opis:A computational numerical model for contact fatigue damage analysis of mechanical elements is presented in this paper. The computational approach is based on continuum mechanics, where a homogenous and elastic material model isassumed in the framework of the finite element method analysis. Cyclic contact loading conditions are simulated with moving Hertzian contact pressure. The time-depending loading cycles are defined for each observed material point on and under the contact area. Furthermore, the influence of friction upon rolling-sliding contact loading cycles is analysed in detail, using Coulombćs friction law. The model for prediction of the number of loading cycles, required for initial fatigue damages to appear, is based on Coffin-Manson relations between deformations and loading cycles, and includes characteristic material fatigue parameters. As a general example, the model isused to analyse a fundamental contact problem of a cylinder and flat surface, which is usually a substitutional model for analysing real mechanicalproblems. However, the results concerning the identification of critical material points and the number of loading cycles, required for initial fatigue damages to appear at those points, are the main purpose of thepresented study.
Ključne besede:machine elements, gears, contact problems, contact fatigue, crack initiation, numerical modelling
Leto izida:2003
PID:20.500.12556/DKUM-27665 Novo okno
UDK:621.833:539.388.1
COBISS.SI-ID:7911702 Novo okno
ISSN pri članku:0142-1123
NUK URN:URN:SI:UM:DK:EOWB3IUS
Datum objave v DKUM:01.06.2012
Število ogledov:1935
Število prenosov:83
Metapodatki:XML DC-XML DC-RDF
Področja:Ostalo
:
ŠRAML, Matjaž, FLAŠKER, Jože in POTRČ, Iztok, 2003, Numerical procedure for predicting the rolling contact fatigue crack initiation. International journal of fatigue [na spletu]. 2003. [Dostopano 14 marec 2025]. Pridobljeno s: http://dx.doi.org/10.1016/S0142-1123(03)00019-7
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Gradivo je del revije

Naslov:International journal of fatigue
Skrajšan naslov:Int. j. fatigue
Založnik:Elsevier
ISSN:0142-1123
COBISS.SI-ID:25643520 Novo okno

Sekundarni jezik

Jezik:Angleški jezik
Ključne besede:strojni elementi, zobniška gonila, kontaktni problemi, kontaktna utrujenost, začetek razpoke, numerično modeliranje


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