An experimental investigation on the effect of steel reinforcement on impact response of reinforced concrete plates

Othman, H.; Marzouk, H.

doi:10.1016/j.ijimpeng.2015.08.015

Cited by 109 publications

(39 citation statements)

References 10 publications

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“…This should be attributed to the propagation of stress wave traveling from the impact zone to the supports. Similar observations have also been found in publications (Othman and Marzouk, 2016; Saatci and Vecchio, 2009; Soleimani and Banthia, 2014).…”

Section: Experimental Observations and Discussionsupporting

confidence: 91%

Experimental and numerical study of reinforced concrete beams with steel fibers subjected to impact loading

Jin

Zhang

Dou

et al. 2017

International Journal of Damage Mechanics

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As a kind of impact resistant material, steel fiber reinforced concrete (SFRC) has a good ductility and energy dissipation capacity by improving the tensile strength and impact toughness. To explore the dynamic mechanical behavior of SFRC beams subjected to impact loading, 12 simply-supported SFRC beams with different stirrup ratios (0%, 0.253% and 0.502%) and different volume fractions of steel fibers (0%, 1%, 2% and 3%) were tested with free-falling drop-weights impacting at the mid-span of specimens. The failure patterns were observed and videoed, and simultaneously, the time histories of the impact force, the reaction force, and the mid-span deflection were recorded. Moreover, the influences of stirrup ratio and volume fraction of steel fibers on the impact resistant behavior of the SFRC beams were preliminarily analyzed and discussed. The results indicate that the impact resistant performance of SFRC beams, such as crack pattern, ductility, energy consumption capacity, and deformation recovery capacity can be improved by the addition of steel fibers and stirrups. The required static capacity of these beams were calculated based on the analysis of reaction force vs. displacement loop and impact force vs. displacement loop as well as absorbed energy ratio. For further understanding the experimental results, finite element simulation of SFRC beams subjected to impact loading were carried out. The rationality and accuracy of the finite element model was illustrated by the good agreement between the test observations and the numerical results.

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Section: Experimental Observations and Discussionsupporting

confidence: 91%

Experimental and numerical study of reinforced concrete beams with steel fibers subjected to impact loading

Jin

Zhang

Dou

et al. 2017

International Journal of Damage Mechanics

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“…This demonstrates that the friction losses occurring in the drop‐weight test setup can be neglected and the test setup can apply impact loads with identical input impact energies. The negligible differences that occurred in the impact loads measured from RC slabs subjected to identical input impact energy stem from the different strength and stiffness values of RC slabs 4,5,7,12,16,18,19,22,23 …”

Section: Resultsmentioning

confidence: 99%

“…The literature review reveals that there are comprehensive studies where the effects of the steel reinforcement ratios and the applied input impact energy level on impact behavior of RC slabs have been investigated. Furthermore, the studies focused on the impact behavior of RC slabs strengthened using fiber reinforced polymer (FRP) material with various layouts, the pretensioned RC slabs, and the slabs manufactured from fiber‐RC have been presented in the literature 1–18 . However, the number of experimental studies examining the effects of different support conditions on the behavior of RC slabs subjected to impact loading is quite limited 19 …”

Section: Introductionmentioning

confidence: 99%

“…The study also included finite element analysis for verification of test results. Othman and Marzouk 12 conducted an experimental study to obtain basic data about concrete slabs under impact loading and tried to determine the effect of reinforcement ratio on the impact behavior of the concrete slabs. Othman and Marzouk 20 carried out a numerical study to evaluate whether concrete damage plasticity (CDP) material model 21 can be used for simulation of the new ultra‐high‐performance fiber RC (UHP–FRC) material subjected to impact load.…”

Section: Introductionmentioning

confidence: 99%

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Experimental and numerical investigation of impact behavior of reinforced concrete slab with different support conditions

Yılmaz

Kıraç

Erdem

et al. 2020

Structural Concrete

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Reinforced concrete (RC) slabs may be subjected to impulsive dynamic loads such as blast and impact during their service period. Many studies related to the impact behavior of RC slabs have been presented. However, comprehensive studies where the effect of the support conditions on the impact behavior of RC slabs has been investigated are still limited. Thus, this study has focused on the effects of the support types and the support layouts on the dynamic responses and the failure modes of RC slabs subjected to impact loads. In the first part of the study, 9 two‐way RC slabs with various support layouts composed of fixed and hinged supports were tested under impact load via the drop‐weight test setup. Two different input impact energies were transmitted to RC slabs during impact loading. The time histories of the accelerations and displacements occurred in RC slabs, and the impact loads acting on RC slabs were recorded. The crack patterns due to the impact load were observed. The dynamic responses obtained by experiments have been interpreted in detail. In the second part, a detailed finite element procedure in which explicit dynamic analysis is performed has been introduced for verification of the experimental results. Good agreement between the experimental and the numerical results has been demonstrated. It has been concluded that proposed finite element procedures can be used for evaluation of the dynamic responses and failure modes of RC slabs under low‐velocity impact load.

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“…Miyamoto et al (1991Miyamoto et al ( , 1994 proposed a safety verification method for an RC railing of a bridge exposed to a vehicle impact, based on the concepts of load-carrying and energy capacity, by conducting scaled vehicle collision tests and finite element analysis. Other studies on the impact behavior of RC slabs subjected to low-velocity impact loads involved experiments and numerical programming (Othman and Marzouk, 2016;Xiao et al, 2016;Zineddin and Krauthammer, 2007). In these studies, primarily, the overall response of RC slabs (flexure and punching shear failures) was investigated at an impact velocity of less than 10 m/s.…”

Section: Introductionmentioning

confidence: 99%

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

Kataoka

Beppu

Ichino

et al. 2017

International Journal of Protective Structures

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This study investigates the failure characteristics of reinforced concrete slabs subjected to moderate-velocity impacts by conducting impact tests and numerical simulations. In a series of tests, a spherical steel projectile with a mass of 8.3 kg and a diameter of 80 mm is collided with an reinforced concrete slab at an impact velocity of 65-90 m/s. To investigate the failure characteristics of the reinforced concrete slab, impact motion of the projectile, reaction force, and strain-time history on the back surface and reinforcing bars of the reinforced concrete slab were measured. Failure modes obtained experimentally were compared with the Central Research Institute of Electric Power Industry formula proposed for the local damage of reinforced concrete slabs. Test results revealed that a circular scabbing crack on the back surface of the reinforced concrete slab was completed while there is a sharp increase in the reaction force. Numerical simulations using a high-fidelity concrete model reasonably reproduced the failure characteristics of an reinforced concrete slab. Numerical results demonstrated that the scabbing failure of an reinforced concrete slab subjected to a moderate-velocity impact was initiated by the penetration of the projectile and was completed during the reaction force response.

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An experimental investigation on the effect of steel reinforcement on impact response of reinforced concrete plates

Cited by 109 publications

References 10 publications

Experimental and numerical study of reinforced concrete beams with steel fibers subjected to impact loading

Experimental and numerical study of reinforced concrete beams with steel fibers subjected to impact loading

Experimental and numerical investigation of impact behavior of reinforced concrete slab with different support conditions

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

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