Empirical formula of size effect curve and pressure measurement for confined AN/AC mixture

摘要

The size effect curves for an ammonium nitrate (AN) and AN-base explosive are discussed based on the steel tube test. The samples are mixtures of the AN and activated carbon (AC). The effects of the size, confinement, and composition on the detonation velocity are clarified, and the size effect curves for various compositions are summarized by empirical equation. The pressure measurements by the PVDF gauge are also conducted in the steel tube test with 35.5 mm inner diameter for the mixture of 7wt % AC. The partially reacted state is estimated by two phases of the detonation products and the Hugoniot, and the measured pressures are investigated with partially reacted state in P-V plane. Finally, the pressure at the sonic plane is estimated.