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충남대학교

충남대학교 건설재료시공학연구실

Building material & construction lab.

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프린트 확대 축소

국내전문학술

장석준, 손석권, 김용환, 김규용, & 윤현도. (2015). 구형 비상체에 의한 충격하중을 받는 강섬유보강 콘크리트 패널의 손상특성. Journal of the Korea Concrete Institute, 27(4), 411-418.
장석준, 손석권, 김용환, 김규용, & 윤현도. (2015). 구형 비상체에 의한 충격하중을 받는 강섬유보강 콘크리트 패널의 손상특성. Journal of the Korea Concrete Institute, 27(4), 411-418.
작성자 관리자
조회수 73 등록일 2015.08.01
주저자 장석준
교신저자 042-821-7731
공동저자 손석권, 김용환, 김규용
학술지명 한국콘크리트학회논문집
This paper investigates the effects of fiber volume fraction and panel thickness on face damage characteristics of steel fiber-reinforced concrete (SFRC) under high-velocity globular projectile impact. The target specimens were prepared with 200 × 200 mm prismatic panels with thickness of 30 or 50 mm. All panels were subjected to the impact of a steel projectile with a diameter of 20 mm and velocity of 350 m/s. Specifically, this paper explores the correlation between mechanical properties and face damage characteristics of SFRC panels with different fiber volume fraction and panel thickness. The mechanical properties of SFRC considered in this study included compressive strength, modulus of rupture, and toughness. Test results indicated that the addition of steel fiber significantly improve the impact resistance of conventional concrete panel. The front face damage of SFRC panels
decreased with increasing the compressive toughness and rear face damage decreased as the modulus of rupture and flexural toughness increased. To evaluate the damage response of SFRC panels under high-velocity impact, finite element analysis conducted using ABAQUS/Explicit commercial program. The predicted face damage of SFRC panels based on simulation shows well agreement with the experimental result in similar failure mode.