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Fretting fatigue behavior of riveted Al 6XXX components

type de publication      article dans une revue internationale avec comité de lecture
date de publication 2008
auteur(s) Guo Ran; Duan Ruichun; Mesmacque Gerard; Zhang Lixiang; Amrouche Abdelwaheb; Guo Rongxin
journal (abréviation) Materials Science and Engineering: A (Mater Sci Eng)
volume (numéro) 483-484
pages 398 – 401
résumé Riveting is a procedure widely used for fitting together two or more elements of a structure, that could be of the same or different material. In these assemblies the stress field is complex and a number of parameters, including effect of the geometrical discontinuities, contact between elements, tightening, material properties and applied load must be considered. The current work focuses on the study of fretting fatigue crack formation in common 6XXX aluminum alloys, used in land transportation equipments, and the determination of the characteristic crack initiation sites by means of both experimental and numerical methods. Three-dimensional finite element models were validated by the experimental results obtained with strain gauges. The influence of the contact friction coefficient at the fretting surface, and fastening forces, on the initiation of cracks, are discussed by the comparison of the different numerical results.
mots clés Fretting Fatigue; Riveted assembly; Finite element Analysis; Multi axial fatigue; Crack initiation
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