Overload damage mechanisms of GFRP-RC beams subjected to high-intensity low-velocity impact loads

Saleh, Zein; Sheikh, M. Neaz; Remennikov, Alexander; Basu, A.

doi:10.1016/j.compstruct.2019.111578

Cited by 14 publications

(8 citation statements)

References 35 publications

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“…Concrete structures may be subjected to impact loads, such as rock fall, vehicle impact, and terrorist attacks during their service life. Previous studies mainly focused on the impact behaviour of OPC beams reinforced with conventional steel reinforcements [36][37][38][39] and very limited studies on the impact behaviour of OPC beams reinforced with FRP bars [32,33,40,41] were reported in recent years.…”

Section: Introductionmentioning

confidence: 99%

“…Numerical models were also built to investigate the influence of reinforcement ratio, concrete strength, drop weight, drop velocity, and impact energy on the responses of OPC beams reinforced with GFRP bars [40]. Saleh et al [41] explored the shear behaviour of OPC beams reinforced with GFRP bars by varying the stirrup spacing and dropping height. It was found that the beams with higher shear capacities failed in flexure and flexure-shear, whereas those with lower shear capacities failed in shear-plug manner.…”

Section: Introductionmentioning

confidence: 99%

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Flexural behaviour of ambient cured geopolymer concrete beams reinforced with BFRP bars under static and impact loads

Huang

Chen

Hao

et al. 2021

Composite Structures

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Flexural behaviour of ambient cured geopolymer concrete beams reinforced with BFRP bars under static and impact loads

Huang

Chen

Hao

et al. 2021

Composite Structures

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“…The deflection value in the GFRP-reinforced beam is two times greater than that in the steel-reinforced beam due to the larger stiffness and low modulus of elasticity of the GFRP. In the case of the beam reinforced with GFRP, the initial crack pattern in the tension zone is similar (Saleh et al, 2020) to that of the steel-reinforced beam. The beam reinforced using GFRP exhibits fewer flexure cracks, and the cracks are wider than those in the steel-reinforced beam, as exhibited in Figure 17 (c) and Figure 17 (d).…”

Section: Load Deflection Behaviormentioning

confidence: 65%

Flexural behavior of reinforced concrete beams with steel and GFRP reinforcement

Kinjawadekar,

Patil,

Nayak

et al. 2023

Preprint

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The use of alternative reinforcement in concrete structures in the form of glass fiber-reinforced polymer (GFRP) is a favorable option to the traditional reinforcement of steel. These bars possess unique features, including resistance to corrosion, an impressive tensile strength by weight ratio, and electromagnetic transparency, making them particularly appealing to the construction sector and structural engineers. The brittleness of GFRP bars significantly lowers the concrete beams’ ductility. Moreover, the significant deformations observed during the post-cracking phase is the effect of lower elastic modulus of these bars. The aim of this research study is to gain a deeper insight into the behaviour of structural members in flexure that are reinforced with GFRP bars. The failure modes were observed. The outcomes of load‒deflection performance are discussed. The fracture patterns observed in beams subjected to two point loading conditions have been documented for beams made of reinforced concrete that use both steel and GFRP as reinforcement. A finite element nonlinear analysis is performed using ABAQUS, to explore the exact response of specimens observed in experimental studies. A comparative study was performed between the experimental and numerical results.

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“…While much of the research on steel sections has concentrated on circular [13,14,15,16,17] and rectangular [18] hollow sections, there remains a shortage of comprehensive studies on the impact loading of hollow elliptical geometry profiles on the weak axis. Furthermore, contemporary technological methods are employed to enhance structural performance under dynamic loads.…”

Section: Introductionmentioning

confidence: 99%

Behavior of Steel Sections with Different Geometries Under Impact Load

Ağcakoca

2024

CEBEL

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In this article, experimental and finite element analysis studies were carried out at different impact heights of steel beams with different geometric cross-sections. The behavior of elements with varying cross-sectional properties was examined when subjected to hammer loads dropped from different heights. In the experimental study, boundary conditions were established using a 2000 mm long rectangular cross-section beam element with pin and roller supports. The behavior of the steel beam under impact load was analyzed using Abaqus Explicit three-dimensional finite element models. Subsequently, a validation process ensuring convergence was performed before conducting a parametric study. 6 finite element models were constructed for the parametric study, comprising circular and ellipse-section steel elements with approximately equivalent unit weights. The cross-sectional geometry and hammer height were varied while keeping the boundary conditions consistent with the samples examined. As the height of the hammer drop increased, the displacement value, Von-Mises stress, and PEEQ (plastic equivalent strain) values of the elements also increased. When transitioning the cross-sectional shape of the beam element from a circle to an ellipse at a constant hammer height, it resulted in a decrease in the displacement value, Von-Mises stress, and PEEQ values. The results indicate that the maximum displacement, highest stress, and PEEQ value are observed in the E#2000 scenario. Similarly, the smallest displacement, lowest stress, and PEEQ value are exhibited in the C#1400 case.

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Overload damage mechanisms of GFRP-RC beams subjected to high-intensity low-velocity impact loads

Cited by 14 publications

References 35 publications

Flexural behaviour of ambient cured geopolymer concrete beams reinforced with BFRP bars under static and impact loads

Flexural behaviour of ambient cured geopolymer concrete beams reinforced with BFRP bars under static and impact loads

Flexural behavior of reinforced concrete beams with steel and GFRP reinforcement

Behavior of Steel Sections with Different Geometries Under Impact Load

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