Reference : Manson-Coffin- and Ramberg-Osgood relation for headed shear studs in fatigue loading
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Manson-Coffin- and Ramberg-Osgood relation for headed shear studs in fatigue loading
Odenbreit, Christoph mailto [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
Dorka, Uwe []
Improving Infrastructure Worldwide
Structurae plus
IABSE Symposium: Improving Infrastructure Worldwide
19-21 September 2007
[en] Composite constructions ; Manson-Coffin relation ; Ramberg-Osgood equation
[en] Welded shear studs in composite bridges are subjected to statical as well as fatigue loading. To proof the fatigue resistance, the so-called Wöhler curves (S-N curves) have been established. The slip displacements in these bridges between concrete slab and steel girder however show that, the loading on the studs is more displacement than force controlled. Results on displacement-controlled fatigue push-out tests on shear studs are presented to describe the correlation between slip and bearable load cycles with the Manson-Coffin equation and the correlation between shear forces and slip with the Ramberg-Osgood equation. Both relations are combined to obtain an assessment of internal forces as well as displacements for the verification of the fatigue resistance.
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