THE INFLUENCE OF ROUNDED EDGES ON THE SHAFT-HUB CONTACT

Abstract

The interfacial pressure in press fits displays local peaks at the edges. Theoretically, if there were perfect square corners, they would be infinite as singularities. However, studies of plane contacts showed that even a small rounding yields finite peaks. In the present work, the appearance of this feature in cylindrical geometry is studied, with its possible consequences on the corrosion-assisted fatigue, the fretting. A substitute model of rigid hub vs. elastic shaft leads to an integral equation, which is solved by a numeric integration.