Modeling the behavior of reinforced concrete slabs subjected to impact

Patel, Parth K.; Bodda, Saran Srikanth; Gupta, Abhinav

doi:10.1016/j.nucengdes.2021.111512

Cited by 5 publications

(3 citation statements)

References 15 publications

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“…This type of element is proper to present the impact behavior of the specimens (Figure 10). The C3D10M element is commonly used for modeling concrete material in impact simulation due it generates dynamic responses compatible with experimental findings 9,10,27–29,31,32 …”

Section: Numerical Analysismentioning

confidence: 99%

“…The C3D10M element is commonly used for modeling concrete material in impact simulation due it generates dynamic responses compatible with experimental findings. 9,10,[27][28][29]31,32 The supports' horizontal and vertical movements are restrained by defining the boundary conditions for the specific sides of the slabs in the software to exhibit the same behavior in the impact experiments. As the steel hammer applies impact loading on the specimens, only the vertical movement of the hammer is released by assigning gravity force without any other external forces.…”

Section: Numerical Analysismentioning

confidence: 99%

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Impact behavior of low strength concrete slab strengthened with fan type anchored carbon fiber‐reinforced polymer strips

Çalişkan

Aras

Yılmaz

et al. 2022

Structural Concrete

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This study investigated the behavior of slabs produced with low compressive strength concrete without reinforcements under the effect of sudden dynamic impact loading. In addition, an experimental study was conducted by proposing a strengthening method with anchored carbon fiber‐reinforced polymer (CFRP) strips to strengthen the nonreinforced slabs with low‐strength concrete against sudden dynamic impact loads to improve their performance. The variables examined in the experimental study were the placement of the CFRP strips adhered to the concrete slabs for strengthening purposes and anchors in the strips. A constant energy level of impact loading was applied to the concrete slab test specimens with the authors' free weight drop test setup. The acceleration‐time, displacement‐time, strain‐time, and applied impact loading‐time measurements on the concrete slabs were examined, and comments were made about the strengthening method applied to the slab test specimens. In addition, numerical analysis of the tested concrete slabs with ABAQUS finite element software was performed, and the results were compared with the experimental results. In the comparison, it was investigated to what extent numerical analysis and this type of impact analysis can be done realistically and compatible with the experimental results. Within the scope of the study, the strengthening method applied with fan‐type anchored CFRP strips significantly improved and increased the impact performance of concrete slabs produced with low‐strength concrete.

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Section: Numerical Analysismentioning

confidence: 99%

Section: Numerical Analysismentioning

confidence: 99%

Impact behavior of low strength concrete slab strengthened with fan type anchored carbon fiber‐reinforced polymer strips

Çalişkan

Aras

Yılmaz

et al. 2022

Structural Concrete

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“…Simulation of concrete using Smooth Particle Hydrodynamics (SPH) is typically more focused on impact problems, such as bullet‐slab penetration in Reference 15 and missile impact in Reference 16 and concrete fragmentation in Reference 17. Other implementations include modeling of fiber reinforced concrete Reference 18 and flow simulation of self‐compacting concrete in Reference 19.…”

Section: Introductionmentioning

confidence: 99%

The numerical simulation of standard concrete tests and steel reinforcement using force flux peridynamics

Olsson

Ander

Williams

2022

Structural Concrete

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Peridynamics is a numerical particle-based solid mechanics method that enables the simulation of brittle and quasi-brittle materials, as well as ductile materials. It allows cracking to appear spontaneously in the arms joining the particles and can therefore be used to simulate progressive fracture. In this article, we apply our version of peridynamics, which we call force flux peridynamics, to the simulation of concrete where the appearance of cracks plays an important role in the global mechanical properties. It is not difficult to modify the material parameters in peridynamics to achieve a given tensile strength or a given compressive strength. However, it is much more difficult to choose parameters which will model all the strength parameters of a material within the same model. When concrete fails in compression it may split or spall showing a complex relationship between compressive and tensile failure. We therefore set ourselves the simple task of producing a single peridynamics model which can predict the stiffness and strength behavior of concrete in standard compression and tension tests for which we chose the American Society for Testing and Materials standards for the cylinder compression test, the split cylinder test, and the modulus of rupture test. A parameter sensitivity study was performed based on the cylinder compression test to tune the key peridynamics parameters that determine the global material behavior. The compressive and tensile strengths were then determined from the combined simulation data. While the fracture modes, crack branching pattern and also the stressstrain curve show promising results, the maximum tensile strength was found to be significantly larger than physical experiments suggest. This is probably due to imperfections within real concrete at the interface between aggregate particles and cement paste and it shows that the detailed numerical modeling of the failure of concrete is highly complex with a large number of unknown material parameters.Discussion on this paper must be submitted within two months of the print publication. The discussion will then be published in print, along with the authors' closure, if any, approximately nine months after the print publication.

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The effect of the W-shape stirrups shear reinforcement on the dynamic behavior of RC flat solid slab subjected to the low-velocity impact loading

Al-Dala'ien,

Syamsir,

Usman

et al. 2023

Results in Engineering

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Modeling the behavior of reinforced concrete slabs subjected to impact

Cited by 5 publications

References 15 publications

Impact behavior of low strength concrete slab strengthened with fan type anchored carbon fiber‐reinforced polymer strips

Impact behavior of low strength concrete slab strengthened with fan type anchored carbon fiber‐reinforced polymer strips

The numerical simulation of standard concrete tests and steel reinforcement using force flux peridynamics

The effect of the W-shape stirrups shear reinforcement on the dynamic behavior of RC flat solid slab subjected to the low-velocity impact loading

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