Abstract
Finite element modeling and analysis of the thermal protection system (TPS) of the EXPERT re-entry vehicle are presented. Transient heat transfer, non-linear thermomechanical, and thermal buckling analyses were performed to access the thermal and structural response of the TPS under flight aerothermal loads, and to confirm that the design has adequate safety margins. Trajectory-based aerodynamic heating and pressure were applied to the TPS to determine transient temperature response, displacement, stresses, and contact forces due to thermal expansion, thermal strains, and mechanical strains. The analyses results show that the TPS meets all thermal and structural requirements.
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