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Home / Products / Instrument of Equipment HIGH VELOCITY GAS GUN FOR BALLISTIC IMPACT TESTING (Download the report) (Download the presentation) The prototype developed in ME 474 Senior Design Project Course is a material testing apparatus, made to test composite materials under ballistic impact. Projectiles are fired unto the test specimen thereby simulating three- point bending. The projectiles of diameters ?" - 1" will achieve the velocity of 1000 m/s or greater. The device consists of a pressure system, release system and a data acquisition sub-system. The working fluid is compressed helium. The working fluid is stored in a reservoir to achieve working pressure of 2000 psi then it is released by the solenoid onto the diaphragm. The diaphragm will rupture at a predetermined pressure and launch the projectile to the environmental chamber at the desired velocity. The test specimens will be held by two vertical clamps. 
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