Abstract
To study the low temperature effects of compressive mechanical properties on Hydroxyl-terminated polybutadiene (HTPB) propellant, a quasi-static mechanical experiment was conducted. The results show that compressive mechanical parameters are closely related to strain rate and low temperature. With the decrease of temperature and increase of strain rate, the modulus and compressive strength of HTPB propellant increase obviously. Based on the time-temperature equivalence principle (TTEP), the master curves of compressive strength and initial modulus for HTPB propellant were obtained, which can facilitate the structural integrity analysis of the propellant.
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