Failure behavior of reinforced concrete slabs subjected to moderate-velocity impact by a steel projectile

Kataoka, Shinnosuke; Beppu, Masatoshi; Ichino, Hiroyoshi; Mase, Tatsuya; Nakada, T.; Matsuzawa, Ryo

doi:10.1177/2041419617721550

Cited by 7 publications

(5 citation statements)

References 21 publications

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“…An RC slab subjected to a higher mass/weight leads to shear failure [83]. Kataoka et al [54] investigated the failure modes of RC slabs subjected to a moderate impact velocity of 80-90 m/s. They revealed that a scabbing crack on the back of the slab surface appears as the velocity increases.…”

Section: Discussionmentioning

confidence: 99%

“…Ref. [54] investigated the failure modes of RC slabs subjected to a moderate impact velocity of 80-90 m/s. The result revealed that scabbing cracks on the back of the slab surface appeared as the velocity increased.…”

Section: Slab Failure Under Impact Loadmentioning

confidence: 99%

“…The result revealed that scabbing cracks on the back of the slab surface appeared as the velocity increased. Figure 4 shows the scabbing mode failure in the RC slab compared with the numerical study of [54] impact surface generated radial cracks, while the back surface showed diagonal cracks. The study concluded that, as velocity increased, the failure mode of the RC slab developed from spalling to scabbing.…”

Section: Slab Failure Under Impact Loadmentioning

confidence: 99%

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Failure Modes Behavior of Different Strengthening Types of RC Slabs Subjected to Low-Velocity Impact Loading: A Review

et al. 2023

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Concrete is brittle; hence, it is incredibly likely that concrete buildings may fail in both local and global ways under dynamic and impulsive stresses. An extensive review investigation was carried out to examine reinforced concrete (RC) slab behavior under low-velocity impact loading. Significant past research studies that dealt with experimental and numerical simulations and analytical modeling of the RC slabs under impact loading have been presented in this work. As a result, numerous attempts to define failure behavior and to assess concrete structures’ vulnerability to lateral impact loads have been made in the literature. Based on analytical, numerical, and experimental studies carried out in previous research, this article thoroughly reviewed the current state of the art regarding the responses and failure behaviors of various types of concrete structures and members subjected to low-velocity impact loading. The effects of different structural and load-related factors were examined regarding the impact strength and failure behavior of reinforced concrete slabs reinforced with various types of strengthening procedures and exposed to low-velocity impact loads. The reviews suggested that advanced composite materials, shear reinforcement, and hybrid techniques are promising for effectively strengthening concrete structures.

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Section: Discussionmentioning

confidence: 99%

Section: Slab Failure Under Impact Loadmentioning

confidence: 99%

Section: Slab Failure Under Impact Loadmentioning

confidence: 99%

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Failure Modes Behavior of Different Strengthening Types of RC Slabs Subjected to Low-Velocity Impact Loading: A Review

et al. 2023

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“…The numbers of concrete and projectile elements were 605 160, and 1 969, respectively. The element size of the concrete was determined 5 mm × 5 mm × 5 mm, referring the previous numerical simulation conducted by the authors (Kataoka et al, 2017). The reinforcing bar was modeled with beam elements embedded in a concrete model with an element size of 5 mm.…”

Section: Numerical Investigationmentioning

confidence: 99%

Local damage characteristics of reinforced concrete slabs subjected to hard/deformable projectile impact

Beppu

Kataoka

Mori

et al. 2022

Advances in Structural Engineering

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This study aims to investigate the local failure mechanism of reinforced concrete slabs subjected to hard and deformable projectile impacts. This is done by conducting impact tests and numerical simulations. In a series of impact tests, a hard/deformable steel projectile (8.3–8.4 kg) collided with a reinforced concrete slab with a thickness of 10–30 cm at an impact velocity of 64–90 m/s, and the impact and reaction forces were measured. The numerical simulation demonstrated that the failure of the reinforced concrete slab was affected by the rigidity of the projectile in terms of the maximum impact force and impulse.

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“…Rajput and Iqbal [18] studied experimentally and numerically the ballistic impact behavior of reinforced and prestressed concrete targets, the experiment was carried out with different projectile striking velocities for three types of concrete, and the numerical investigation was modelled in finite element code ABAQUS. Kataoka et al (2017) [19] studied the effect of moderate velocity impact on the failure characteristics of reinforced concrete slabs experimentally and numerically.…”

Section: Introductionmentioning

confidence: 99%

Investigation of High-Velocity Projectile Penetrating Concrete Blocks Reinforced by Layers of High Toughness and Energy Absorption Materials

Elhozayen

Laissy²,

Attia

2019

Civ Eng J

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Recently, the need to protect people and structures against attacks of terrorists are of a high increase. The main objective of this paper is to enhance the concrete resistance against ballistic impact of high velocity projectile by using different combination layers from different materials as reinforcement for concrete and investigate their effect on the penetration depth of projectile and the resulted damage of concrete. The investigation presents the development of a finite element accurate models using AUTODYN 3D. The Lagrangian formulation numerical techniques is used to model the projectile and concrete target. The investigated models are reinforced using different layers combinations of several materials such as ceramics, fiber composite, polymer and metal: (AL2O3 - 99.7% and Kevlar- epoxy, Teflon and aluminum alloy 6061-T6) .Those materials were chosen because of their high thermal shock resistance or their great capability in energy absorption. The main findings showed a significant enhancement in the reduction of penetration depth compared to the concrete resistance without reinforcement, which demonstrate the great performance of the used combinations in the shock wave propagation. Hence from the findings of this work we can say that the concrete reinforced by ceramics or aluminum alloy with fiber composite or polymer can be used for several applications as it represents a successful anti-penetration composite structure.

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Failure behavior of reinforced concrete slabs subjected to moderate-velocity impact by a steel projectile

Cited by 7 publications

References 21 publications

Failure Modes Behavior of Different Strengthening Types of RC Slabs Subjected to Low-Velocity Impact Loading: A Review

Failure Modes Behavior of Different Strengthening Types of RC Slabs Subjected to Low-Velocity Impact Loading: A Review

Local damage characteristics of reinforced concrete slabs subjected to hard/deformable projectile impact

Investigation of High-Velocity Projectile Penetrating Concrete Blocks Reinforced by Layers of High Toughness and Energy Absorption Materials

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