Passive defence system against hollow charged weapons

Abstract

A defence barrier against hollow charge warheads, the barrier comprising a plurality of sealed, demountable elements filled with pressurised fluid and being provided side by side to form the barrier. The pressure of the fluid is above 100 bars.

1 . A defence barrier against hollow charge warheads, the barrier comprising a plurality of sealed, demountable element filled with pressurised fluid and being provided side by side to form the barrier, where the pressure of the fluid is above 100 bars and the pressurised fluid has at least one of the following characteristics; the fluid is a liquid, the fluid is fire retardant, the fluid contains a fire retardant, non-gaseous, compressible material, wherein
 the elements are mutually fastened by second fasteners in groups, and wherein the groups are fastened by first fasteners to a support.   
     
     
         2 . A defence barrier according to  claim 1 , wherein each element comprises only one fluid filled chamber. 
     
     
         3 . A defence barrier according to  claim 1 , wherein the support is an armour shield. 
     
     
         4 . A defence barrier according to  claim 1 , wherein the elements has a first wall facing a direction for possible attack and at least a second wall facing another direction, where the elements are made of a light weight material, mainly including glass, polymer or both. 
     
     
         5 . A defence barrier according to  claim 1 , wherein one or more of the walls is produced in a material with a material thickness and material strength of the order necessary to withstand the pressure of the pressurised fluid but without being armoured to a degree which substantially hinders the warhead to penetrate the second wall. 
     
     
         6 . A defence barrier according to  claim 1 , wherein the barrier comprises multiple layers of elements. 
     
     
         7 . A defence barrier according to  claim 1 , in combination with a military land vehicle.