Multiaxial fatigue reliability analysis of railroad wheels

Yongming Liu, Liming Liu, Brant Stratman, Sankaran Mahadevan

Research output: Contribution to journalArticlepeer-review

57 Scopus citations


A general methodology for fatigue reliability degradation of railroad wheels is proposed in this paper. Both fatigue crack initiation and crack propagation life are included in the proposed methodology using previously developed multiaxial fatigue models by the same authors. A response surface method in conjunction with design of experiments is used to develop a closed form approximation of the fatigue damage accumulation with respect to the input random variables. The total fatigue life of railroad wheels under stochastic loading is simulated, accounting for the spatial and temporal randomness of the fatigue damage. The field observations of railroad wheel fatigue failures are compared with the numerical predictions using the proposed methodology.

Original languageEnglish (US)
Pages (from-to)456-467
Number of pages12
JournalReliability Engineering and System Safety
Issue number3
StatePublished - Mar 2008
Externally publishedYes


  • Multiaxial fatigue
  • Reliability
  • Rolling contact fatigue
  • Stochastic

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Industrial and Manufacturing Engineering


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