Finite Element Analysis of the Influence of Chamfer Hub Geometry on the Stress Concentrations of Shrink Fits

The theoretical expressions commonly used in the design of interference fits do not take into account huge stress concentrations located at edges hub. This underestimation real state can induce incorrect performance shaft–hub assembly. Among different methods to address this problem is use chamfer hubs, which are for reducing such concentrations. In paper, an analysis, performed via finite element method, influence geometric parameters a shrink fit with hubs was carried out aim determining optimal dimensions type mechanical To achieve goal, hub geometries were considered: (i) full–chamfer defined by angle and (ii) partial–chamfer height. According obtained results, be reduced using angles within range 13°–15° depending on thickness. addition, similar results height half thickness 13°–15°. By these recommendations, equations without underestimating state.