Abstract
A method for creating a rivet connection using hot riveting is considered. A rivet heated to a temperature of 900 С is placed in a cylindrical hole in the plates at room temperature. When cooled to room temperature, the rivet is subjected to thermal compression and creates a tight fit. The elastic-plastic contact heat-strength problem for such a compound in the COMSOL MULTIPHYSICS software package was solved using the finite element method. The problem is solved in a three-dimensional statement. The first stage is the temperature distribution in the rivet-sheet system. The resulting temperature field is used as a parameter at the second stage when solving the strength problem. The fields of residual stresses in the connection parts are obtained. It is shown that the equivalent stresses are close to the ultimate strength of the material of these parts. The analysis of axial stresses confirms the possibility of creating a tight connection by hot riveting. Recommendations for calculating the strength of such compounds are given.
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