Numerical Bending Fatigue Analysis of a Surface Hardened Spur Gears (CROSBI ID 664685)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Čular, Ivan ; Vučković, Krešimir ; Miler, Daniel ; Žeželj, Dragan
engleski
Numerical Bending Fatigue Analysis of a Surface Hardened Spur Gears
Surface hardened spur gears are one of the most commonly used machine elements regarding the power transmission. During gear service life, variable and cyclic nature of the stresses at the tooth root may lead to material fatigue, commonly known as bending fatigue. The bending fatigue may cause crack initiation and consequently propagation at the tooth root fillet, eventually resulting in a tooth breakage. In this paper, the authors presented a computational model for predicting the number of cycles required for crack initiation. Two cases of driven gears are considered. Elastic finite element analysis is used to generate the numerical models which accounts for the nominal tooth root stress change during the gear meshing. Additional effects due to friction and centrifugal force are also considered. Fatigue models are generated using the strain-life approach and finite element analysis results. Mean and residual stresses, along with the local plastic deformation effects, are also considered. The bending fatigue life results are in good agreement with the experimental data from the available literature for the first case and conservative for the second.
spur gear ; bending fatigue ; finite element analysis ; strain-life method ; surface hardened gears
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Podaci o prilogu
55-58.
2018.
objavljeno
Podaci o matičnoj publikaciji
Reis, Luis ; Freitas, Manuel ; Anes, Vitor
Lisabon: Instituto Superrior Técnico
978-989-20-8548-7
Podaci o skupu
18th International Conference on New Trends in Fatigue and Fracture
predavanje
17.07.2018-20.07.2018
Lisabon, Portugal