Sub-surface Fatigue Crack Growth at Alumina Inclusions in AISI 52100 Roller Bearings

Michele Cerullo

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Abstract

Sub-surface fatigue crack growth at non metallic inclusions is studied in AISI 52100 bearing steel under typical rolling contact loads. A first 2D plane strain finite element analysis is carried out to compute the stress history in the innner race at a characteristic depth, where the Dang Van damage factor is highest. Subsequently the stress history is imposed as boundary conditions in a periodic unit cell model, where an alumina inclusion is embedded in a AISI 52100 matrix. Cracks are assumed to grow radially from the inclusion under cyclic loading. The growth is predicted by means of irreversible fatigue cohesive elements. Different orientations of the cracks and different matrix-inclusion bonding conditions are analyzed and compared.
Original languageEnglish
JournalProcedia Engineering
Volume74
Pages (from-to)333-338
ISSN1877-7058
DOIs
Publication statusPublished - 2014
Event17th International Colloquim on Mechanical Fatigue of Metals (ICMFM17) - Verbania, Italy
Duration: 25 Jun 201427 Jun 2014
Conference number: 17
http://www.icmfm17.org/

Conference

Conference17th International Colloquim on Mechanical Fatigue of Metals (ICMFM17)
Number17
CountryItaly
CityVerbania
Period25/06/201427/06/2014
Internet address

Bibliographical note

© 2014 Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license

Keywords

  • Rolling contact fatigue
  • AISI 52100
  • Inclusions
  • Wind Turbine
  • Cohesive Element

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