Time-Dependent Nature of Adhesive EA946

More accurate analyses of adhesive EA946 can now be accomplished using new mathematical models. Tests involving this adhesive (used in the space shuttle's reusable solid-rocket-motor nozzle and other rocket-motor nozzles) indicated that the adhesive is nonlinearly viscoelastic at short equivalent times and linearly viscoelastic at long equivalent times. These tests also showed that the material properties of EA946 change with aging time after cure.