Research on the effect of superimposed pressure on the mechanical properties of solid propellants
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Li Hui, Xu Jin-sheng,Chen Xiong and Hou Yu-fei
In order to study the superimposed pressure and strain rate dependence of the compressive mechanical properties of solid propellants, compressive tests were conducted under various superimposed pressure conditions and strain rates using a new-designed superimposed pressure testing machine. The mechanical properties of solid propellants under varying superimposed pressure conditions were studied and analyzed. The results shows that the mechanical properties of propellant materials are remarkably influenced by the varying superimposed pressure conditions. With increasing the superimposed pressure, the yield strength of solid propellants increases.
Superimposed pressure, solid propellants, stress-strain curves