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  Volume 2, Number 4, October 2017 , pages 333-348

FE simulation of S-N curves for a riveted connection using two-stage fatigue models
Jose A.F.O. Correia, Abílio M.P. de Jesus, Antonio L.L. Silva, Bruno Pedrosa, Carlos Rebelo and Rui A.B. Calcada

    Inspections of ancient metallic bridges have illustrated fatigue cracking in riveted connections. This paper presents a comparison between two alternative finite element (FE) models proposed to predict the fatigue strength of a single shear and single rivet connection. The first model is based on solid finite elements as well as on contact elements, to simulate contact between the components of the connection. The second model is built using shell finite elements in order to model the plates of the riveted connection. Fatigue life predictions are carried out for the shear splice, integrating both crack initiation and crack propagation lives, resulting from the two alternative FE models. Global fatigue results, taking into account several clamping stresses on rivet, are compared with available experimental results. Proposed comparisons between predictions and experimental data illustrated that the proposed two-stage model yields consistent results.
Key Words
    fatigue; S-N curve; finite element model; riveted connections; ancient bridges
Jose A.F.O. Correia, Abílio M.P. de Jesus, Antonio L.L. Silva and Rui A.B. Calcada: Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
Bruno Pedrosa and Carlos Rebelo: Department of Civil Engineering, University of Coimbra, Rua Luis Reis Santos, 3030-788 Coimbra, Portugal

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