Case assembly including adhesive bond that is insensitive to high operating pressures and exhibits inherent high temperature relief capability, and motor assembly and rocket assembly including the same

摘要

A case assembly including a case sleeve structure and an end closure structure having a mating portion bonded to an inner receptacle surface region of the case sleeve structure with an adhesive material. The mating portion is constructed and arranged to transfer longitudinal and radial operating loads from the adhesive material to the end closure structure, thereby making the adhesive bond insensitive to high internal operating pressures without the need for supplemental mechanical fasteners. The case assembly may be provided with Insensitive Munitions (IM) capability by selecting as the adhesive material a material having a glass transition temperature below the auto-ignition temperature of the propellant, and excluding from the case assembly any mechanical fasteners that prevent the sleeve-to-closure joint from structurally failing at a temperature below the auto-ignition temperature.