Ballistic test

Pendulum, Ballistic, Test. See under Physical Tests in Vol 1, VII to VIII (Also see A. Schmidt, Explosivst 1962, 23-34)... 

Ballistic Measuring Methods and Ballistic Tests. See Vol 2 of Encycl, pp B5-R ... 

Pendulum, Ballistic Test. See Ballistic Pendulum Test... 

Hayes (1938) Measurement of Grains (pp 28-29) Compression Test (29) Stability by Kl-Starch Paper Test, 134.5°C Heat Test, 120°C Heat Test, 65.5°C Surveillance Test and Observation Test (29-30) Ballistic Test (30-31) Heat of Explosion at Constant Pressure (51-2) Volume of Gas (52-3) Heat of Explosion at Constant Volume (54-5) Potential (55) Temperature of Explosion (55-7) Pressure of Explosion (57-61) Heat of Explosion of Propellants (62-4) Ignition of Propellants (68-70) Mode and Rate of Burning (70-71) Velocity Measurements by Le Boulange, Aberdeen, and Solenoid Chronographs (84-92) Pressure Measurements by Crusher and Piezoelectric Gages (92-6)... 

Initial Velocity. Same as Muzzle Velocity—see under Ballistic Tests and Ballistics in Vol 1, p B5-R B7-L additional French refs ... 

Tests showed the proplnts to be-.of relatively low stability, unduly volatile hygroscopic. Ballistic tests gave results indicating the proplnts to have less ballistic potential than Pyrocellulose, and to deposit unburned residue in the rifle barrel. The proplnts, represented by the two samples, were considered to be of little promise for use in military ammo Ref A.J. Phillips, Study of Propellant Powder Submitted by Dr Frans Jablonsky , PATR 796 (Jan 1937)... 

Various stability tests) 238—39 (Chemical tests) 239—43 (Physical tests) 246—50 (Ballistic tests)... 

Gun Proof Tests. Ballistic Tests in guns are described In the following Refs ... 

Waste materials from soaked powder are used chiefly for preliminary ballistic tests. They can also be converted into less valuable types of powder, earmarked for rapid consumption (practice or sporting powders). Such powders are treated with solvent in the same way as waste products (4), although they require a longer time to dissolve. Thus, during the World Wars, when powders were consumed rapidly, soaked waste products were utilized for this purpose. 

Velocity, Projectile. See earlier treatments in Vol 2, B5-R to B6-L, under Ballistic Measuring Methods and Ballistic Tests in Vol 3, C304-R to C310-R, under Chronoscopes, Chronometers and Other Devices Used in Measuring Velocities of Projectiles in Flight and of Detonation Velocities of Explosives and in Vol 8, M162-R to M163-L, under Muzzle Velocity ... 

Forty-five hundred pound batches, each, of modified Compn A-3 using the three different waxes were prepd. It is significant that the method used in their production was by an emulsion encapsulation technique. As part of this program, 400 each 105mm HEP-T M393 rounds were loaded and ballistically tested against standard Compn A-3. As a result, Compn A-3 made using AC-656 polyethylene was selected for further evaluation. All acceptance and safety certification tests were successfully completed. It is concluded from the evaluation of the materials produced that ... 

These tests, when conducted in different weapons, may also serve as ballistic tests of the weapons... 

As examples of ballistic tests for explosives may be cited brisance, power, velocity of detonation tests, etc. Some of these tests are briefly described under Physical Tests, Vol 1, p VUrf, of this Encyclopedia, others will be described later. Ballistic tests for shells, bofilbs, fOCkctS, grcliaucS, ClC limy iiiCiUuc flag mentation characteristics, penetration in armor... 

C) Unoxidized Carbon. This value is the calcd amt of carbonaceous smoke produced by propint in ballistic tests. Assumptions made to simplify calcns ate as follows ... 

JL.E.Smith, Jr, Sunflower Ordnance Works Rept SUN 270-41 (1959) (Ballistic test methods-closed bomb variables) 66)L. 

Ballistic tests are reported in Munroe s interesting article on The Development of Smokeless Powder, J. Am. Chem. Soc., 18, 819-846 (1896). 

Backman, Terminal Ballistics , Naval Weapons Center TP 5780 (1976), ADA 021833 5) J.P. Lambert et al, Standardization of Terminal Ballistics Testing, Data Storage and Retrieval , ARBRL-TR-02066 (1978), ADE 430062... 

Impact tests may be performed with notched or unnotched specimens, but the results cannot be compared. The presence of a notch induces a great part of the crack initiation energy. The speed of the striker or of the crosshead may be varied from 1ms-1 to several kms-1 for ballistic tests strain rates may vary in the range of 10-1 up to 100 s-1. Very often the energy for failure is divided by the effective cross-sectional area or the deformed volume, in order to calculate, respectively, the surface or the volume resilience. Using the compliance formula and simple assumptions, GIc may be directly calculated (Williams, 1984). 

The manufactured 90 mm x 90 mm x 10 mm three-layered B4C/B4C-30wt%SiC tiles were tested as armor [67], The photographs of the experiment set-up of the ballistic test as well as a residual impression in the clay box that was used as one of the criteria in the ballistic performance of laminates are shown in Fig. 7.17. The ballistic penetration tests were performed to evaluate the ballistic performance of the laminates. Depth of penetration tests were used to evaluate the ballistic performance of the composite laminates. In addition, pure B4C monolithic ceramics were used as a standard for the test. Test panels were made using the three-layered B4C/B4C-SiC laminate and B4C monolithic ceramic material as the hard face. While the B4C monolithic tile had 100% of its theoretical density, the three-layered B4C/B4C-30wt%SiC laminates had about 3-4% of porosity. A commonly used Spectra fiber-reinforced polymer composite was used as backing plates. The targets were mounted on clay and the projectile was shot at the target at a specific velocity. 

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