Quasi-Static Compaction Studies of Propellant Beds

In this paper, quasi-static compaction experiments of propellant beds with different initial temperatures and particle sizes were performed. Stress-strain relations of the propellant beds during the compaction were measured. The relationship between the intragranular stress and the initial temperature were obtained. Combustion experiments in the closed bomb were conducted by using the standard propellant and the propellant after being compacted. The results show that the surface densification and damage of the propellant are the main factors that influence the combustion characteristics of the propellants.