Instrumented rocket motor service life program

Abstract

The paper describes a Solid Propellant Rocket Motor Service Life program conducted at the Aeronautical and Maritime Research Laboratory1 DSTO in Australia, which combined a nonlinear viscoelastic analysis of an Australian Pictor motor and used miniature embedded stress transducers to confirm analysis or define the actual stresses in the rocket motor during thermal cycling, cooling, storage and motor processing conditions. The measured stresses during solid propellant rocket motor processing, cure, cooldown, thermal cycling and accelerated and ambient ageing were obtained for comparison with linear elasticlviscoelastic and nonlinear viscoelastic finite element analysis. Measurements are in reasonable agreement with nonlinear viscoelastic analysis for most motor loading conditions.

Technique of Determination of SRM Operational Life Taking into Account Materials and Elements Strength Margins

“…В ряде стран (США, Россия, Германия, Индия и др.) проводятся исследования физико-химических процессов в материалах (полимерах, резинах, твердых топливах) и влияния внешних факторов на работоспособность устройств [1][2][3][4][5][6][7].…”