NUMERICAL SIMULATION OF RIVETING PROCESS USING BLIND RIVET

This paper is concerned with an analysis of the mechanical phenomena occurring in the process of blind riveting. Blind rivets are commonly used in the aviation industry and allow riveting with one-sided access. To solve this problem, the finite element method was used. In results of the nonlinear computation performed for a joint containing one rivet, the stress distribution in the separate phases of riveting were analyzed. The plots of riveting force in function of rivet core displacement for different friction coefficients between the rivet and the core and the plastic strain distribution also were obtained. The main purpose of this work was to obtain the initial stress distribution occurring in the rivet and sheets after the mandrel was broken. This analysis showed that after finishing the riveting process the initial stresses occurring in the rivet have high values.