Simulation of the fatigue crack initiation in SAE 52100 martensitic hardened bearing steel during rolling contact

dc.contributor.authorDogahe, Kiarash Jamali
dc.contributor.authorGuski, Vinzenz
dc.contributor.authorMlikota, Marijo
dc.contributor.authorSchmauder, Siegfried
dc.contributor.authorHolweger, Walter
dc.contributor.authorSpille, Joshua
dc.contributor.authorMayer, Joachim
dc.contributor.authorSchwedt, Alexander
dc.contributor.authorGörlach, Bernd
dc.contributor.authorWranik, Jürgen
dc.date.accessioned2024-08-28T12:41:04Z
dc.date.available2024-08-28T12:41:04Z
dc.date.issued2022de
dc.date.updated2023-11-14T02:07:55Z
dc.description.abstractAn investigation on the White Etching Crack (WEC) phenomenon as a severe damage mode in bearing applications led to the observation that in a latent pre-damage state period, visible alterations appear on the surface of the raceway. A detailed inspection of the microstructure underneath the alterations reveals the existence of plenty of nano-sized pores in a depth range of 80 µm to 200 µm. The depth of the maximum Hertzian stress is calculated to be at 127 µm subsurface. The present study investigates the effect of these nanopores on the fatigue crack initiation in SAE 52100 martensitic hardened bearing steel. In this sense, two micro-models by means of the Finite Element Method (FEM) are developed for both a sample with and a sample without pores. The number of cycles required for the crack initiation for both samples is calculated, using the physical-based Tanaka-Mura model. It is shown that pores reduce the number of cycles in bearing application to come to an earlier transition from microstructural short cracks (MSC) to long crack (LC) propagation significantly.en
dc.identifier.issn2075-4442
dc.identifier.other1901907929
dc.identifier.urihttp://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-149075de
dc.identifier.urihttp://elib.uni-stuttgart.de/handle/11682/14907
dc.identifier.urihttp://dx.doi.org/10.18419/opus-14888
dc.language.isoende
dc.relation.uridoi:10.3390/lubricants10040062de
dc.rightsinfo:eu-repo/semantics/openAccessde
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/de
dc.subject.ddc620de
dc.titleSimulation of the fatigue crack initiation in SAE 52100 martensitic hardened bearing steel during rolling contacten
dc.typearticlede
ubs.fakultaetEnergie-, Verfahrens- und Biotechnikde
ubs.fakultaetFakultäts- und hochschulübergreifende Einrichtungende
ubs.fakultaetFakultätsübergreifend / Sonstige Einrichtungde
ubs.institutInstitut für Materialprüfung, Werkstoffkunde und Festigkeitslehrede
ubs.institutGraduate School of Excellence for Advanced Manufacturing Engineering (GSaME)de
ubs.institutFakultätsübergreifend / Sonstige Einrichtungde
ubs.publikation.seiten14de
ubs.publikation.sourceLubricants 10 (2022), No. 62de
ubs.publikation.typZeitschriftenartikelde

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