Naslov
Numerical Modelling of Gear Tooth Root Fatigue Behaviour

Autori
Jelaska, Damir ; Glodež, Srečko ; Kramberger, Janez ; Podrug, Srđan

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the International Conference on Fatigue Crack Paths : FCP 2003 / Carpinteri, A. ; Pook, L.P - Parma, 2003

Skup
International Conference on Fatigue Crack Paths : FCP 2003

Mjesto i datum
Parma, Italija, 18.09.2003. - 20.09.2003

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
machine elements; fatigue initiation; fatigue crack growth; numerical modelling

Sažetak
The Coffin-Manson relationship is used to determine the number of stress cycles required for the fatigue crack initiation, where it is assumed that the initial crack is located at the point of the largest stresses in a gear tooth root. The simple Paris equation is then used for the further simulation of the fatigue crack growth, where required material parameters have been determined previously by the appropriate test specimens. The functional relationship between the stress intensity factor and crack length, which is needed for determination of the required number of loading cycles for a crack propagation from the initial to the critical length, is obtained numerically in the framework of the Finite Element Method. The total number of stress cycles for the final failure to occure is then sum of the number of stress cycles required for the fatigue crack initiation and the number of stress cycless for a crack propagation.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

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