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

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.

Fundamental Study on the Development of Sprayed High Performance Fiber Reinforced Cementitious Composites for Impact-Blast Resistant

“…[1,2,3,4,5] However, researches on materials and materials that configures of the effective safety protection and explosion-proof for the social infrastructures and private facilities are insufficient yet. In addition, different from newly built structures, the researches on the high-performance composite materials and its application technologies are required to maximize the reinforcing performance preparing for the safety protection and explosion-proof in the limited sizes, for the existing structures being used.…”

Influence of Hybrid Steel Fiber Addition on Direct Tensile Behavior of UHPC

“…Compared to other materials exhibiting strain hardening behavior, the advantages brought by the strain hardening behavior under direct tension are the possibility to transfer large loads and the development of outstanding performances in terms of ductility and energy absorption capacity [1][2]. Such high tensile strength and energy absorption capacity provided by UHPFRC are valuable for enhancing effectively the resistance to earthquake, impact and extreme load of SOC infrastructures or high-rise buildings applying this material [3][4][5][6][7][8][9][10].…”