Numerical Analysis of the Explosive Formation of Aluminum Particles at Velocities of Up to 16 km/s with the Use of Combined Cumulative Coatings

Explosive propelling devices are used to test objects of rocket and space technology for resistance to the effects of meteoroids and fragments of space debris. Based on numerical simulation carried out with the use of computational complexes ANSYS/AUTODYN and ERUDIT, the possibilities of obtaining aluminum particles with velocities of up to 16 km/s with the aid of shaped charges with a combined cumulative coating are considered. For achieving this goal, the thickness of the jet-forming part of the coating was built up degressively, with the surfaces limiting it having the shape of the surfaces of a semiellipsoid or a semisuperellipsoid of revolution.