Prediction of Scabbing Limit Thickness Considering Fiber Reinforced Effect about High-Velocity Impact

고속비상체 충돌에 대한 섬유보강효과를 고려한 배면박리한계두께 예측

Since consists of regression equation by penetration depth prediction calculated by existing NDRC formula mainly considers properties of projectile, impact velocity, compressive strength as parameter, it is difficult to apply it to fire reinforced concrete. In this study, scabbing limit thickness was predict considering fiber reinforcement effect by local fracture of concrete was evaluated through high-velocity impact test. As a result of applying fracture reduction coefficient to NDRC, it was possible to predict scabbing limit thickness of fiber reinforced concrete similarly with actual measurement.