A mathematical model of spalling fatigue failure in rolling contact

Y. P. Chiu, T. E. Tallian, J. I. McCool, J. A. Martin

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


Variables affecting the fatigue life of a rolling contact are identified. A mathematical model of sub-surface and surface crack propagation is presented. The life to failure of volume elements in the vicinity of a defect (defect life) is formulated. A term “severity” of a microdefect has been defined. The model is characterized by the inclusion of bulk material parameters, defect characteristics and parameters of geometry, stress, lubrication and surface topography. A statistical expression for the life of an entire rolling body is based on the defect life formula. The new model comprises current standard bearing life prediction formulas as a special case.

Original languageEnglish (US)
Pages (from-to)106-116
Number of pages11
JournalASLE transactions
Issue number2
StatePublished - Apr 1969

All Science Journal Classification (ASJC) codes

  • General Engineering
  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films


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