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http://dx.doi.org/10.4334/JKCI.2015.27.4.411

Face Damage Characteristic of Steel Fiber-Reinforced Concrete Panels under High-Velocity Globular Projectile Impact  

Jang, Seok-Joon (Dept. of Architectural Engineering, Chungnam National University)
Son, Seok-Kwon (Dept. of Mechanical Design Engineering, Chungnam National University)
Kim, Yong-Hwan (Dept. of Mechanical Design Engineering, Chungnam National University)
Kim, Gyu-Yong (Dept. of Architectural Engineering, Chungnam National University)
Yun, Hyun-Do (Dept. of Architectural Engineering, Chungnam National University)
Publication Information
Journal of the Korea Concrete Institute / v.27, no.4, 2015 , pp. 411-418 More about this Journal
Abstract
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 $200{\times}200mm$ 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.
Keywords
steel fiber; damage mitigation; impact resistance; high velocity impact; mechanical properties; cocnrete;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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