Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experimental and Numerical Investigation of Hybrid Fiber-Reinforced Concrete Beam
In this paper, the optimum content of hybrid fiber (HF) has been found out, i.e., steel (0.8%) and polypropylene (0.1%) fibers experimentally; these results are simulated with finite element analysis (FEA). For this purpose, 21 reinforced concrete (RC) beam specimens and 21 cylinders with different combinations of steel and polpropylene fibers were cast and tested using the third-point loading (ASTM C 78) with the dimension of 150 × 150 × 900 mm. A nonlinear finite element analysis is performed on a quarter beam sample using the concrete damaged plasticity (CDP) model in ABAQUS. BM-7 (0.8% of steel fiber and 0.1% of polypropylene fiber) exhibited the maximum flexural capacity of 88.2 kN with 5.4 maximum deflection, and the first crack appeared at the value of the load of 35.84 kN. Therefore, for the validation of the FEM parameters, BM-7 is calibrated by trying different parameters of the plastic behavior of concrete. These calibrated values are implemented to the remaining specimens, load–deflection curves for each specimen are obtained. When the simulation between the experimental and FEA model was done, both the experimental and numerical results exhibited a good agreement, having the difference for all cases within 10% limits for the ultimate load as well as for the deflection.
Experimental and Numerical Investigation of Hybrid Fiber-Reinforced Concrete Beam
In this paper, the optimum content of hybrid fiber (HF) has been found out, i.e., steel (0.8%) and polypropylene (0.1%) fibers experimentally; these results are simulated with finite element analysis (FEA). For this purpose, 21 reinforced concrete (RC) beam specimens and 21 cylinders with different combinations of steel and polpropylene fibers were cast and tested using the third-point loading (ASTM C 78) with the dimension of 150 × 150 × 900 mm. A nonlinear finite element analysis is performed on a quarter beam sample using the concrete damaged plasticity (CDP) model in ABAQUS. BM-7 (0.8% of steel fiber and 0.1% of polypropylene fiber) exhibited the maximum flexural capacity of 88.2 kN with 5.4 maximum deflection, and the first crack appeared at the value of the load of 35.84 kN. Therefore, for the validation of the FEM parameters, BM-7 is calibrated by trying different parameters of the plastic behavior of concrete. These calibrated values are implemented to the remaining specimens, load–deflection curves for each specimen are obtained. When the simulation between the experimental and FEA model was done, both the experimental and numerical results exhibited a good agreement, having the difference for all cases within 10% limits for the ultimate load as well as for the deflection.
Experimental and Numerical Investigation of Hybrid Fiber-Reinforced Concrete Beam
Iran J Sci Technol Trans Civ Eng
Khan, Qaiser uz Zaman (Autor:in)
01.10.2022
16 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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