Detonation Velocity of Model Mixed Explosive Compositions and Its Dependence on the Content of Components and Charge Diameter

This paper presents the results of experimental and computational studies of the influence exerted on the detonation velocity of model mixed explosive compositions by a number of factors: type of explosive and polymer binder, content and particle size of components (explosive, aluminum powder, and oxidizer), and charge diameter. It has been found that the detonation velocities of the explosive okfol and mixed compositions containing an active binder and $$60{-}80\%$$ explosive (CL-20 and HMX) are close to each other. The most marked decrease in detonation velocity is observed for mixed compositions with a mass content of aluminum higher than 20 $$\%$$ with increasing oxidizer concentration from 6 to 30 $$\%$$ . Increasing the particle size of the explosive and oxidizer leads to an increase in the experimental detonation velocity of explosive compositions. The limiting detonation diameter for mixed compositions based on the active binder is $$40{-}80$$ mm depending on the content of components.