Scaling effect in dynamic fracture (spallation) of brittle and ductile material

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