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

Michele Cerullo

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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
Pages (from-to)333-338
Publication statusPublished - 2014
Event17th International Colloquim on Mechanical Fatigue of Metals (ICMFM17) - Verbania, Italy
Duration: 25 Jun 201427 Jun 2014
Conference number: 17


Conference17th International Colloquim on Mechanical Fatigue of Metals (ICMFM17)
Internet address

Bibliographical note

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


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

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