Static mechanical properties and impact resistance of amorphous metallic fiber-reinforced concrete

Kim, Hongseop; Kim, Gyu-Yong; Nam, Jeongsoo; Kim, Jung-Hyun; Han, Sang-Hyu; Lee, Sanggyu

doi:10.1016/j.compstruct.2015.08.128

Cited by 31 publications

(10 citation statements)

References 20 publications

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“…e network structure of fibers increases the friction within the mixture and reduces its workability as well. Kim et al [25] drew a similar conclusion, where the amount of slump decreased as the amorphous metallic fiber volume fraction was increased. It can also be seen that the slump of AAFRC decreases more obviously than that of SFRC with the same volume fraction.…”

Section: Slumpmentioning

confidence: 77%

Experimental Study on the Mechanical Properties of Amorphous Alloy Fiber‐Reinforced Concrete

Jiang

Wang

Guo

et al. 2018

Advances in Materials Science and Engineering

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With great mechanical properties and corrosion resistance, amorphous alloy fiber (AAF) is a highly anticipated material in the fiber-reinforced concrete (FRC) field. In this study, the mechanical properties of AAFRC such as compressive strength, tensile strength, and flexural strength were examined. The comparison and analysis between AAFRC and steel fiber-reinforced concrete (SFRC) were also carried out. The results show that adding fibers significantly improves the concrete strength and toughness index. Compared with plain concrete, the compressive strength, splitting tensile strength, and flexural strength of AAFRC increase by 8.21–16.72%, 10.4–32.8%, and 18.12–45.21%, respectively. Meanwhile, the addition of AAF with a greater tensile strength and larger unit volume quantity improves the splitting tensile strength and flexural strength of concrete more noticeably than that of SF. Adding AAF improves the ductility of concrete more significantly in comparison to the SF. AAFRC shows great interfacial bonding performance as well. A prediction equation for the strength of AAFRC was proposed, which verified good accuracy calibrated based on the test results.

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Section: Slumpmentioning

confidence: 77%

Experimental Study on the Mechanical Properties of Amorphous Alloy Fiber‐Reinforced Concrete

Jiang

Wang

Guo

et al. 2018

Advances in Materials Science and Engineering

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“…Table 3 gives the mix proportions of concrete. Nonreinforced concrete (NC) and hooked steel fiber-reinforced concrete (HSFRC) panels, which were subjected only to hemispherical projectile impact in a previous study, were fabricated [ 20 , 21 ]. The fiber volume fraction was 1.0%.…”

Section: Experimental Programmentioning

confidence: 99%

Strain Behavior of Concrete Panels Subjected to Different Nose Shapes of Projectile Impact

Lee

Kim

et al. 2018

Materials

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This study evaluates the fracture properties and rear-face strain distribution of nonreinforced and hooked steel fiber-reinforced concrete panels penetrated by projectiles of three different nose shapes: sharp, hemispherical, and flat. The sharp projectile nose resulted in a deeper penetration because of the concentration of the impact force. Conversely, the flat projectile nose resulted in shallower penetrations. The penetration based on different projectile nose shapes is directly related to the impact force transmitted to the rear face. Scabbing can be more accurately predicted by the tensile strain on the rear face of concrete due to the projectile nose shape. The tensile strain on the rear face of the concrete was reduced by the hooked steel fiber reinforcement because the hooked steel fiber absorbed some of the impact stress transmitted to the rear face of the concrete. Consequently, the strain behavior on the rear face of concrete according to the projectile nose shape was confirmed.

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“…Because of its low cost, easy available and good protective performance, concrete materials are widely used in various structures, such as civilian buildings, bridges, hydraulic engineering, airports, command bunkers and hardened shelters [1][2][3]. In recent years, with the increase in thickness of concrete protection engineering and development of various novel ultra-high performance concretes [4][5][6], a conventional anti-hard target warhead, shaped charge (SC), may not be effective against concrete targets. Therefore, various technical solutions have been employed by researchers aimed at improving the SC penetration performance on concrete targets [7,8].…”

Section: Introductionmentioning

confidence: 99%

Penetration of a hypervelocity shaped charge into layered and spaced concrete targets

Wang

Yuan

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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With the increase in the concrete thickness for protection engineering and the development of various novel concrete structures, as an important anti-hard target warhead, the conventional conical shaped charge (CSC) may not be effective against concrete targets. To increase the penetration depth of the CSC on concrete targets, a comparative study between hypervelocity shaped charge (HSC) and CSC into concrete layered and spaced targets were performed at different standoff distances. Furthermore, the effect of the thickness of the tungsten slab on the formation of HSC was investigated by simulations and experiments. The results indicated that, as the thickness (K) of the tungsten slab increases from 2.5 to 10.0 mm, the velocity of the projectile formed by HSC first increases and then decreases. A similar trend was observed for the penetration depth of HSC into the layered concrete targets. The penetration depth of layered targets caused by HSC with K = 7.5 mm increased by 31.3% than that formed by CSC.

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Static mechanical properties and impact resistance of amorphous metallic fiber-reinforced concrete

Cited by 31 publications

References 20 publications

Experimental Study on the Mechanical Properties of Amorphous Alloy Fiber‐Reinforced Concrete

Experimental Study on the Mechanical Properties of Amorphous Alloy Fiber‐Reinforced Concrete

Strain Behavior of Concrete Panels Subjected to Different Nose Shapes of Projectile Impact

Penetration of a hypervelocity shaped charge into layered and spaced concrete targets

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