Study on Failure Patterns and Energy absorption of Fiber Reinforced Concrete Panel Subjected with .44 Magnum Bullet
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Abstract
This study was to investigate the failure patterns and energy absorption of bulletproof panel made of steel fiber-reinforced concrete plates. The plates were subjected to .44 Magnum bullet direct fire weapons from 5 meter for study the damage, weight loss and energy absorption with different thickness and fiber content. During the test, each plate was shot by a bullet at a center of the plate. Two ballistic chronographs (velocity measuring) were placed at front and back of the tested plates at a distance of 2.5 and 0.3 meter respective to determine the energy absorption. The result shows that the failure patterns of concrete plates are dependent on plate thickness and fiber content. Typical failure patterns are perforation, scabbing, spalling, and cracking. However, few plates had no damage. Also, the energy absorption also depends on thickness of the concrete plate and volume fractions of the steel fiber.
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