Mater.Phys.Mech.(MPM)
No 1, Vol. 42, 2019, pages 20-29

NUMERICAL SIMULATION OF HYPERVELOCITY IMPACTS OF VARIOUSLY
SHAPED PROJECTILES WITH THIN BUMPERS

M.V. Silnikov, I.V. Guk, A.I. Mikhaylin, A.F. Nechunaev, B.V. Rumyantsev

Abstract

The paper presents a numerical simulation of hypervelocity impacts of variously shaped projectiles with thin bumpers. A numerical model was verified using a full-scale experiment of hypervelocity impact of a sphere with thin aluminum-alloy bumper. Hypervelocity impacts of nonspherical projectiles of different spatial orientation with thin bumpers were also numerically investigated. The investigations show that a hypervelocity impact of a nonspherical projectile advancing with its sharp edge towards the bumper results in a denser debris cloud formation and, therefore, such an impact is more dangerous than any of other considered cases for the spaced protection.

Keywords: hypervelocity impact, space debris, non-spherical projectiles, debris clouds, Whipple shields

full paper (pdf, 1536 Kb)