Armor-plate-test

In testing penetration of armor, etc, by various projectiles, they can be fired against armor plate of varying thickness and compn until the maximum depth of penetration is detd ... 

Armor Plate Impact Test (Shell Impact Test). See Vol 1, p VII... 

Armor Plate Impact Test and Bulk Compressibility Tests are described in PATR 1740, listed here as Ref 37... 

Shells (loaded with Comp B) with these liners were tested by firing from the MIS rifle. These shells which rotated at about 210rpm, penetrated at least 3 inches in armor-plate in 96% of trials and 6 inches in 40% of trials. When fired at 120rpm in a spin-test app, the average penetration in mild steel was 7.4 indies. The standard 57mm M307A1 HEAT Shell which contains a hemispherical liner cannot be relied upon to penetrate 3 inches of armor plate... 

For rifle grenades the test is conducted essentially in the same manner, with the exception that the grenade is fired from a rifle instead of being propelled from a pneumatic grenade thrower. The "antitank grenades are usually fired against an armor plate... 

Armor Plate Impact TestfShell Impact Test). This test was developed during WW II to provide an additional sensitivity test for HE s commonly used, and to supplement data obtained by impact and rifle-bullet tests. 

As mentioned previously (Ref 22) the use of Al-wax nose pads, 80/20 and 90/10, was investigated for use in AP shot in rifle bullet impact bombs. From these test results the use of the nose pad appears to produce better results (output) and would be the more practical system to load. In addition it is felt that such a system would reduce or prevent premature activation of HE loaded projectiles when striking armor plate... 

Impact Test). This test is conducted to determine the ability of armor-piercing bullets to penetrate or perforate when fired at armor plate. This is usually done by firing at 100yds against an armor plate target properly mounted and supported. The ang of impact should he 85 to 90 degrees between the longitudinal axis of the bullet and the plate(Ref ll,p 42)... 

Tests by firing 20mm 37mm AP projs, prepd by the above method, against a 5cm thick chromium -nickel steel armor plate placed at a distance of 200 meters, showed that the av penetration was about 2/3 deeper than with an untreated standard AP proj... 

The Susan Sensitivity Test (Ref 7) is a projectile impact test with the projectile shown in Fig 1. The wt of expl in the projectile head is about 1 lb (0.45 kg). The target is armor-plate steel. The results of the tests are expressed in... 

This test is conducted by placing the assembly vertically, at a known stand-off distance, above several layers of 0.5 inch thick armor-plate steel and detonating the charge. After detonation,the depth of hole, its average diameter at the top, and its volume are determined. Refs 1)TM 9—1910(1955),78—85 2)PATR 1740, Rev 1(1958) 3)Cook( 1958),226-64... 

Also propellant charges for rockets and guns have also been developed by compounding solid explosives such as nitramines (e.g. -> Cy-clonite) with plastics. Plastic explosives and plastic propellants are of interest, if low thermal and impact sensitivity is needed (- LOVA -> Armor Plate Impact Test -> Friction Sensitivity -> Heat Sensitivity - Impact Sensitivity -> Projectile Impact Sensitifity - Susan Test). 

Christopher R. Alexander - Stress Engineering Services, Inc., Houston, Texas Fred D. Wilson Armor Plate, Inc. Pasadena, Texas, Analysis, testing and proposed guidehnes for repairing pipelines with composite materials... 

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