Abstract
When driving in cities, due to intensive loads, the brake disc assembly aside of mechanical and thermal stresses. Thermal stresses are the main source of risk for the braking system. In the paper, a numerical thermo-mechanical analysis was performed using ANSYS software for brake disc assembly within a hydraulic braking system. In the numerical analysis the model coupled between disc and pad was considered. In the paper were determined the total deformations, the values of Von Misses stresses and the temperature variations within a certain braking interval. In the first modelling was considered a ventilated disc made of gray cast iron and brake pads made of semi metallic material. In the second modelling was considered the same brake disc and pads made of composite material with organic fibre. The simulation models will be validated by experimental determinations on a hydraulic braking plant. Both numerical simulation and experimental determinations were performed by considering ten successive brakes. The results were used to compare the values obtained from numerical and experimental temperatures in order to validate the considered models.
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