Experimental and numerical studies on the flexural behaviour of GFRP laminated hybrid-fibre-reinforced concrete (HFRC) beams

Ramesh, B.; Eswari, S.; Sundararajan, T.

doi:10.1007/s41062-020-00374-z

Cited by 10 publications

(4 citation statements)

References 33 publications

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“…Concrete is a composite and brittle material that possesses distinct nonlinear material properties in tensions and compression (Al-Rousan et al , 2020). The eight-node SOLID65 brick element is used to model the concrete material property with each node that can free to move in translational x -, y - and z -directions (El-Sayed, 2019; Vasudevan and Kothandaraman, 2014; Ramesh et al , 2021; El-Shaer and Samaan, 2018; Salama et al , 2019). This element is capable of modelling the cracking and crushing behaviour of concrete in tension and compression in three orthogonal directions (ANSYS, 2007).…”

Section: Nonlinear Finite Element Analysismentioning

confidence: 99%

“…A detailed mesh sensitivity analysis, beam geometric symmetry study and efficient modelling techniques of RC beam are illustrated. The numerical results and Kothandaraman, 2014;Ramesh et al, 2021;El-Shaer and Samaan, 2018;Salama et al, 2019). This element is capable of modelling the cracking and crushing behaviour of concrete in tension and compression in three orthogonal directions (ANSYS, 2007).…”

Section: Nonlinear Finite Element Analysismentioning

confidence: 99%

“…To predict the reliability of ANSYS software, the four developed numerical models are verified through comparison against the experimental data available in the literature. In this study, SOLID65, LINK180, COMBIN39 and SOLID185 elements are used to represent the concrete, steel rebars, interface bond–slip and loading and support plates based on the intensive literature study (Adawi et al , 2016; Jnaid and Aboutaha, 2014; Vasudevan and Kothandaraman, 2015; Shetty et al , 2015; Nwankwo and Ede, 2020; Ramesh et al , 2021; Kadhim et al , 2019). A detailed mesh sensitivity study is performed to assess the optimum number of elements required to achieve a good accuracy of results.…”

Section: Introductionmentioning

confidence: 99%

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Nonlinear modelling and finite element analysis on the load-bearing capacity of RC beams with considering the bond–slip effect

Pandimani

Raju

Geddada

2021

JEDT

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Purpose This paper aims to present nonlinear numerical simulations using the versatile finite element (FE) analysis tool ANSYS and theoretical analysis based on code provisions to assess the load-carrying capacity of reinforced concrete (RC) beams under two-point monotonic static loadings. Design/methodology/approach Four quarter-size FE models with load and geometry symmetry conditions were constructed, the load-bearing capacity and associated mid-span deflections at critical points are verified against the full-scale experimental RC beams available in the literature. These developed FE models incorporated the tension stiffening effects and bond–slip behaviour. Theoretical analyses based on Indian standard code IS: 456–2000 and ACI 318–19 were also carried to verify the experimental and numerical predicted moments at critical loading points. Findings The load-deflection curves predicted through FE models exhibit closer corroboration with the experimental curves throughout the loading history. The contour plots for deflections, concrete principal stresses, reinforcement yield stresses are satisfactorily predicted by the FE models, which reveal the complete information of nonlinear behaviour of RC beams. The developed model well captured the initial and progressive crack patterns at each load increments. Practical implications The FE modelling is an efficient, valid and economical tool that is an alternative to the expensive experimental program and can be used to explore, analyse and fully understand the nonlinear response of RC beams under static loadings. Originality/value The ultimate moment capacity evaluated based on ACI 318–19 code provision show a better correlation with the experimental data as compared to the IS: 456–2000 code provision. The ultimate loads and associated centre-span deflections predicted by RN-2, RN-3, RB-12 and RB-16 FE model show a discrepancy of 1.66 and –0.49%, –4.68 and –0.60%, –9.38 and –14.53% and –4.37 and 4.21%, respectively, against the experimental results, which reveals that the developed ANSYS FE models predict consistent results and achieved a reasonable agreement with the experimental data.

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Section: Nonlinear Finite Element Analysismentioning

confidence: 99%

Section: Nonlinear Finite Element Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nonlinear modelling and finite element analysis on the load-bearing capacity of RC beams with considering the bond–slip effect

Pandimani

Raju

Geddada

2021

JEDT

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“…Given its high strength-to-weight ratio, great durability performance, and significantly lower cost compared to carbon FRPs, GFRP has demonstrated high potential as a substitute for non-corrosive reinforcement [26]. Design standards have also been created for the use of GFRP bars in RC elements, and they have been successfully implemented in a variety of structures, including bridges, parking garages, tunnels, and marine assemblies [7,27,28]. crack formation, the contribution from dowel action declines as the reinforcement ratio is reduced.…”

Section: Introductionmentioning

confidence: 99%

Shear Performance of GFRP Reinforced Concrete Beams with Seawater and Chopped Fiber

et al. 2023

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This paper reports an experimental study on the behavior and shear strength of concrete beams reinforced with longitudinal GFRP bars mixed with sea water. In order to evaluate how much concrete contributes to shear resistance, seven beams were tested in bending. Similar in size and concrete strength, the beams were longitudinally reinforced with glass fiber-reinforced polymer bars; however, they did not even have shear reinforcement. The beams, which measured 3,100 mm in length, 400 mm in depth, and 200 mm in width, were conducted and tested up to failure. The test variables were longitudinal reinforcement ratios (1.0, 1.4, and 2.0%), chopped fiber content (0, 0.5, 2, and 3 kg/m3), and mixing water type (freshwater and seawater). The test findings showed that increasing the reinforcement ratio increased the neutral-axis depth and allowed the formation of more closely spaced fractures while decreasing the loss of flexural stiffness after cracking. By increasing the area of concrete in compression, this in turn enhances the contribution of aggregate interlock as well as the contribution of uncracked concrete. Furthermore, increasing the reinforcement ratio improves the dowel action, which reduces the tensile stresses that are created in the concrete around it. Doi: 10.28991/CEJ-2023-09-04-05 Full Text: PDF

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Numerical nonlinear modeling and simulations of high strength reinforced concrete beams using ANSYS

2021

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Experimental and numerical studies on the flexural behaviour of GFRP laminated hybrid-fibre-reinforced concrete (HFRC) beams

Cited by 10 publications

References 33 publications

Nonlinear modelling and finite element analysis on the load-bearing capacity of RC beams with considering the bond–slip effect

Nonlinear modelling and finite element analysis on the load-bearing capacity of RC beams with considering the bond–slip effect

Shear Performance of GFRP Reinforced Concrete Beams with Seawater and Chopped Fiber

Numerical nonlinear modeling and simulations of high strength reinforced concrete beams using ANSYS

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