The background and tasks of thermomechanics of aerospace structures are presented. First its prerequistes are discussed:load spectra and materialCharacteristics.Then some typical structural concepts are introduced,such as:heat protection system during entry, orbital structure, and the use of carbonfiberreinforced polymers in airplanes. From these concepts the tasks of thermome-chanics of aerospace structures are deduced: thermal analysis, structural analysis,thermo- damage mechanics, thermomechanical c...