The thesis presents the issue of mapping the shape of contact surfaces of screw joint elements and the impact of such mapping on the obtained stress distribution in the stereomechanical analysis using the finite element method. The analysed case presented the decrease in the clamping force in the screw fastening the aluminium wheel of the car wheel to the hub. The model developed for the purposes of the analysis concerned only the rims. The impact of the screw in the mounting socket was modelled by applying to the nodes on the contact surface the screw head the screw seat in the rim, the corresponding displacements in the material of the rim coming from the clamping force of the bolt. Assuming the symmetry of the model (geometric, load), a half-model was used to carry out the numerical analysis of the connection. The model was discritized with CTETRA and CHEXA finite elements with a total number of 72361 (fig. 1.).
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