Fatigue assessment of a riveted shear splice based on a probabilistic model

Abílio M.P. De Jesus, Hernán Pinto, Alfonso Fernández-Canteli, Enrique Castillo, José A.F.O. Correia

Research output: Contribution to journalArticlepeer-review

78 Scopus citations

Abstract

A procedure for estimation of probabilistic fatigue S-N curves for notched structural components is described. Plain material strain-life data is used to identify a statistical Weibull strain-life model and, using an adequate elastoplastic analysis, material strain-life probabilistic curves are converted into probabilistic stress-life curves of the structural component. The performance of the proposed model is illustrated by a practical example of a riveted shear splice, from a Portuguese railway bridge, for which experimental resistance data is available. A simplified elastoplastic analysis based on the Neuber and the Glinka rules are used, supported by the results of an elastic finite element analysis of the riveted connection. The paper demonstrates the success of the proposed probabilistic model since it correlates satisfactorily with the available experimental data for the riveted connection. The achieved results confirm the proposed probabilistic model as well suited for notched structural components with a whole fatigue life dominated by crack initiation.

Original languageEnglish
Pages (from-to)453-462
Number of pages10
JournalInternational Journal of Fatigue
Volume32
Issue number2
DOIs
StatePublished - Feb 2010
Externally publishedYes

Keywords

  • Fatigue modelling
  • Finite element analysis
  • Life prediction
  • Probabilistic analysis
  • Riveted connections
  • S-N curves

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