Scaling relationships for evaluation of performance of advanced space debris shields

In a recent paper [1], the authors proposed a scaling law that predicts how a low melting point, high density projectile at a low impact velocity could be used to simulate the damage on a typical spacecraft debris shield by a high velocity fragment. This scaling law differs from the traditional approach to velocity scaling for debris shield impact, since it permits the use of the original shield materials at the lower impact speed. The present work shows how a high sound speed, moderate density, low velocity fragment might also be used to simulate the high velocity impact. Numerical simulations are used to compare and contrast the damage caused by the impacts from the different projectiles.