Method for estimating the acceleration ability of aluminized high explosives

A semiempirical method for calculating the acceleration ability of aluminized high explosives was developed using experimental data. The method is based on the assumption that the coefficient of transformation of chemical energy into the kinetic energy of the flyer depends on the number of moles of gaseous detonation products. The model takes into account the effective extent of oxidation of aluminum at various stages of motion of the flyer. Calculations were performed for compositions containing a number of new explosives. The calculation results show that nanostructured aluminized composite can be superior to mechanical mixture in acceleration ability if the main explosive has a highly negative oxygen balance or contains and enhanced amount of hydrogen.