Space debris generation in GEO: Space materials testing and evaluation

The aim of this work is to evaluate what happens the spacecraft materials beyond End Life. A review external and effects space environment presented. This paper results from a continued study on material degradation, debris formation in geostationary orbit (GEO). In 20-year GEO dose profile that combines simultaneous UV, particles irradiation thermal cycling was applied set materials. These comprised MLI assemblies, Velcros fixation painting. evaluation these materials, exposed simulated have confirmed criticality degradation MLI, painting, with delamination mechanisms particulate contamination. synergy radiation (particles, UV) ages induces mechanical stress, causing creation brittle surfaces, cracks delamination. phenomena cause serious damage changing surfaces thermo-optical properties, may induce generation debris. particular, experimental show internal layers severe Velcros.