Abstract
Concrete specimens were subjected to impact from a high-aspect-ratio fragment to illustrate and quantify the effect of compressive strength, thickness, and fiber reinforcement on spall and breach performance. Thickness was found to affect the transition between breaching and spalling, with thicker specimens producing less breached area and eventually only spall. Greater compressive strength was found to produce increased spall response. However, when breach occurred, greater concrete compressive strength meaningfully decreased the breach area. The inclusion of fiber reinforcement notably decreased the breach and spall responses of reinforced concrete elements impacted by a high-aspect-ratio fragment.
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