Shock wave caused by the high-velocity impact causing the tensile strain and stress on the rear side. When the tensile strain and stress exceeds the tensile strength of the concrete, crack and fracture were occurred. The strain on the rear side was reduced due to Improvement of the tensile strength by fiber reinforcement and increasing the specimen thickness.

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• 김규용(충남대학교 건축공학과 교수) | Kim, Gyu Yong 교신저자
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• 한상휴(충남대학교 건축공학과, 석사과정) | Han, Sang Hyu
• 이영욱(충남대학교 건축공학과, 석사과정) | Lee, Young Wook