Importance

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Abstract

A mortar shell including: a metallic inner layer; a polymer outer layer having reinforcing fibers dispersed therein; and at least one layer of metallic fragments disposed between the inner and outer layers, the layer of metallic fragments including a plurality of individual metallic fragments unconnected to each other. In a variation, the mortar shell including: a metallic inner layer, the metallic inner layer having a grid formed on an outer surface to define a plurality of metallic fragments separated by grooves; a polymer having first reinforcing fibers disposed within the grooves; and a polymer outer layer having second reinforcing fibers dispersed therein. In another variation, the mortar shell including a polymer outer layer having reinforcing fibers dispersed therein; and a metallic inner layer having a plurality of metallic fragments with a shape to interlock to each of the other and assembled together into the metallic inner layer.

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First Claim