The influence of the structures on the progressive burning of multilayer gun propellant disk was discussed and the theoretical Г-ψ curves were obtained by a established combustion model of the multilayer gun propellant disk, and the static burning behaviors of the multilayer propellant with diffrerent structures were studied by the closed bomb test. The results show that the trends of multilayer gun propellant experimental curves are similar to the trends of multilayer gun propellant theoretical curves while propellant burned mass was in 0.2- 0.8; too large （or too small） K and X has a negative impact on progressive burning of the multilayer propellant, and only within reasonable choice, will the progressive burning of the multilayer propellant get better; The characteristic of constant surface burning is present and progressive burning of the multilayer propellant becomes better with the width to its intial thickness W rising.
Chinese Journal of Explosives ＆ Propellants
multilayer gun propellant
combustion gas generation brisance