Results are presented from an experimental study of the spallation strength
of lead (S1) and a metal-ceramic (Al + 20% SiC) as representatives of mate
rials that are more ductile and brittle than those studied before. The dime
nsions of the samples changed by factors of 4-5. It was found that during f
racture of these materials under high velocity one-dimensional deformation,
significant scaling effects are observed which originate in the energy cha
racteristics.