Two Driving Gas Threats

Table of Contents
1. Introduction……………………………………………………………………….. 2
1.1 Literature Review………………………………………………………………… 3
1.1.1 Projectile………………………………………………………………………….4
1.1.2 Driving gas………………………………………………………………………. 6
1.1.3 Limitations……………………………………………………………………….. 6
1.1.4 Benefits…………………………………………………….……………………..6
2. Ballistics Protection Overview………………………………………………………..7
3. Ballistics threats categorization……………………………………………………….9
3.1Ballistic impact on a soft armor system.......................................................…...10
3.2Ballistic impact on hard armor system……………………………………………..10
4. Conclusion and suggestions for future works……………………………………...11
5.Bibliography…………………………………………………………………………….13

1. Introduction:
To

Helium, hydrogen, and nitrogen all are non-liquefied gases that are possible options for our pneumatic gun. For safety purposes, helium and nitrogen are non-toxic and non-flammable. Hydrogen, on the other hand, is flammable and will most likely not be used. Gas gun with different shapes and sizes of barrel length simulate different projectile on impacting surface. For our project we have different barrel lengths and different projectile diameter. With the increase in barrel length velocity of projectile increase some length distance then show decreasing trend after specific barrel length. To achieve higher impact on shield we have different diameter projectile which will accelerate with help of

Cracks are generated in the ceramic and ceramic imparts stress back on the projectile, whereby the projectile is deformed, shattered or eroded. The projectile or fragments might go on to penetrate the ceramic, depending on force of the threat. The fragments (projectile and ceramic) are stopped by the composite backing, if the protective system is able to defeat the threat. Otherwise the projectile or some fragments travel through the system and hit the wearer. Residual deformation might be created on the back side of the armor system, transferring the momentum to the wearer's body, possibly leading to “blunt