Holography for Defect Detection on Artillery Projectiles
A matter of grave concern in the production of artillery projectiles is the presence of cracks in the steel projectile body. During rough handling and active usage by the troops, small sub-critical cracks can grow to critical dimensions. Ultimately, the high stresses induced in the shell by the set back forces of gun launch can cause the cracks to completely fracture the shell while still in-bore. An in-bore premature is extremely serious, resulting in destruction of the weapon and possible loss of life.
KeywordsDefect Detection Fringe Pattern Reference Beam Holographic Interferometry Vibration Isolation System
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