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http://dx.doi.org/10.4334/JKCI.2013.25.1.107

Evaluation on the Impact Resistant Performance of Fiber Reinforced Concrete by High-Velocity Projectile and Contacted Explosion  

Nam, Jeong-Soo (Dept. of Architectural Engineering, Chungnam National University)
Kim, Hong-Seop (Dept. of Architectural Engineering, Chungnam National University)
Lee, In-Cheol (Dept. of Architectural Engineering, Chungnam National University)
Miyauchi, Hiroyuki (Dept. of Architectural Engineering, Chungnam National University)
Kim, Gyu-Yong (Dept. of Architectural Engineering, Chungnam National University)
Publication Information
Journal of the Korea Concrete Institute / v.25, no.1, 2013 , pp. 107-114 More about this Journal
Abstract
In this study we experimentally evaluated an impact resistant performance of fiber reinforced concrete in the moment of explosion by high-velocity projectile with emulsion explosive. To assess the impact resistance, we conducted the impact test of high-velocity projectile which reaches an impact speed of 350 m/s and the experiment of contact exploding emulsion explosive. As a result, bending and tensile performance depending on type of PVA, PE fiber (polyvinyl alcohol fiber, polyethylene fiber) and steel fiber affects destruction of rear side in the form of spalling. Destroying the backside of the concrete compressive strength compared to suppress the bending and tensile performance is affected. In addition, the experiment shows that the destruction patterns of concrete specimen producted by high velocity impact and contact explosion are significantly similar. Therefore, it is possible to predict the destruction patterns of specimens in the situation of contact explosion by high-velocity projectile.
Keywords
fiber reinforcement; impact resistant performance; high-velocity projectile; explosion; local damage;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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