
517Introduction to Explosive Effects
Some general rules for case fragmentation based on material properties are presented
here. In general, a more brittle material such as gray cast iron will produce a very large
number of small fragments. This is desirable when lethal effects are to be localized to the
projectile area. A precision delivery would be required to use this property most effec-
tively. A more ductile material will generally produce a smaller number of large frag-
ments. These fragments will be more lethal at longer ranges. This has the advantage of
being able to account for some inaccuracy in projectile delivery. It is generally accepted ...