Effects of defects on ejecta production in tin

Defects in the form of scratches, dings, and dents can form on manufactured parts during handling beyond the typical machining process. The purpose of this work was to evaluate the effect of three types of defects that one might expect and how these defects may alter the production of ejecta from the surface. In this work, we present the observed effects on the mass and velocity time history produced from the three types of defects that were manufactured into the surface. The experiments nominally were performed at the same peak stress and pulse duration with data collected from the non-defected and defected surface.