Processing Mechanical Test Specimens of Charred Solid Rocket Motor Insulation Materials

摘要

THROUGHOUT the history of rocketry, the performance ofnrocket-powered devices has depended upon their ability tonwithstand the high temperatures and loads associated with their use.nAs the use of rockets has developed to require longer flights, the focusnof research has shifted from developing the most efficient pressurenvessel to improving the nozzle, insulation, and other time-sensitivenmaterials [1]. Observed temperatures in modern solid rocket motorsncan reach as high as 4000u0001C, putting most structural materials at riskn[2]. To allowthe use of more standard materials for rocket casings, anneffective thermal protection system is important. Typically, severalnlayers of insulation are added between the solid fuel and casing,nshielding the casing from the heat produced by the combusting fuel.nFigure 1 shows a simple design for a cylindrical casing for a solidnrocket motor.