Protection device against projectile-forming charges

Abstract

A protective device is provided that includes material strips made of at least two different materials, wherein the thickness of the strips is considerably larger than the height and the height of the strips is at least half as large as the calibre of the explosively formed projectile and both materials have considerably different strengths. The alignment of the sandwich composition is such that the material layers arranged on top of each other face the impact direction. Thus, a projectile designed in the direction of the protective structure shears off and no longer slide through the protection in a straight manner.

1 . A protection device for protection of an object, the protection device comprising a sandwich structure formed of different substances, an the alignment of the sandwich structure thereby forming substance layers being arranged such that the substance layers face an effect direction located alongside one another or one above the other, with a projectile impacting on at least two substances of different materials such that a portion of the projectile penetrates quickly through one material, while another portion of the projectile penetrates more slowly in the other material. 
     
     
         2 . The protection device as claimed in  claim 1 , wherein a thickness of the substance strips is considerably greater than a height, and wherein the height of the strips is at least half as great as the caliber of the EFP flying projectile. 
     
     
         3 . The protection device as claimed in  claim 1 , wherein the substances have considerably different strengths. 
     
     
         4 . The protection device as claimed in  claim 1 , wherein the substance layers include combinations of steel, aluminum, ceramic, silicon carbide or aluminum oxide and plastic, polyethylene, polypropylene or polyamide, thus forming two layers or a plurality of layers of different materials.