In order to have the stress values for comparison and to understand the structural behaviour of some components of the satellite, since there is no data concerning the loads or the stress on a satellite during re-entry, three components were analyzed: •??A ceramic bench, inside the satellite and difficult to thermally demise during re-entry also because made of ceramic material; •??A special washer made of a zinc-based alloy (EZACTM), part of the Demisable Joint (TASinI patent); •??The Demisable Joint, a solution to improve the demisability of the satellite, by facilitating the detachment of the external panels, improving the exposure of inner components to heat flux and thus increasing their demisability; From the results of FEM analysis on the study cases it’s clear that each component withstands at operative loads without breaking-up but they have a different behaviour at the atmospheric re-entry