Ballistic packing

Fig. 6. Formation of the granular structure of the cylindrical pellet by the mechanism of sequential deposition of individual grains, the so-called ballistic packing.

Its other props were Brisance, by Sand Test 90% of TNT Friction, by Pendulum Test - no explns Hygroscopiciry - 2.1%, when exposed to air of 90% RH at 30 Power, by Ballistic Pendulum 96% of TNT Rifle Bullet Impact Test -explns Sensitivity to Initiation - more sensitive than TNT Stability as packed, as shown by longterm storage tests - satisfactory Stability in the 75° International Test - loses 1% of wt but no deterioration Stability at 100° in 96 hrs - volatilization, but no decompn... 

Chain mail can also be used as a flexible knife-resistant armour. In this case the action of the chain links is to capture the blade tip after a small amount of perforation. It is therefore necessary to use either a very fine chain link diameter or a padding system. Typically the armour systems will consist of a layer of chain mail positioned on the front face of a conventional multilayer ballistic fabric pack. This construction has very good flexibility and provides both knife and ballistic protection at a weight comparable to, although slightly greater than, a laminated fabric solution. It is, however, typically mote flexible than the laminated fabric and has foimd particular use in female armour, which needs this greater flexibility to allow for breast shape. 

Material models may be mathematical and encapsulated in computational versions of the real world, or they canbe derived from experimental testing of representative armour packs. In ballistic testing of armom systems, it is possible to shoot identical targets in order to establish figures for the and - the velocities at which 50%... 

The aramids are used mainly in heat-protection products cut-protection products ballistic-protection products tires hoses transmission belts friction product sealing materials (gaskets and braided packings) adhesives, sealant and coatings specialty paper products ropes and cables thermoplastic pipes aramid-rubber composites hot gas filtration composites etc. 

The diameters are given in millimeters. The volume of gas produced at 0°C and 760 millimeters of pressure is 908 liters per kilogram or 132 percent of TNT. Trauzl tests indicate RDX is 151 to 170 percent as powerful as TNT. However, tests against earthworks, masonry, and in underwater explosions indicate a power of close to 200 percent that of TNT. In one test a 25 kilogram charge of RDX in a shell produced a crater in packed earth 12.60 cubic meters in volume. The same amount of TNT under the same conditions produced a crater 6.75 cubic meters in volume. This indicates a power for RDX of 186.5 percent of TNT. The ballistic mortar test indicates a power of 150 to 161 percent that of TNT. These test results indicate RDX is the second most powerful military explosive. 

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