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Finite Element Modelling of UHPFRC Tensile Bars
In the present paper, a numerical modelling study on the uniaxial tensile behaviour of reinforced UHPFRC ties by means of a non-linear finite element model (NLFEM) is carried out. The results obtained from the simulation done by the NLFEM are compared to the results from an experimental programme adopted. These tensile bars (ties) modelled in this work are cast using UHPFRC with 160 kg/m3 of steel fibres and tested in a direct tensile test. The NLFEM developed for UHPFRC reinforced flexural beams used in previous research is improved and applied in order to validate the mechanical tensile characterisation of UHPFRC when direct tensile reinforced elements are considered. As it happens with the flexural elements, in this case the shrinkage and tension stiffening effects are essential in the model to simulate the reality of the tensile test. After the NLFEM simulation, very accurate results are obtained that lead to consider the reliability of the NLFEM model developed not only for flexural reinforced elements, but also for direct tensile ones.
Finite Element Modelling of UHPFRC Tensile Bars
In the present paper, a numerical modelling study on the uniaxial tensile behaviour of reinforced UHPFRC ties by means of a non-linear finite element model (NLFEM) is carried out. The results obtained from the simulation done by the NLFEM are compared to the results from an experimental programme adopted. These tensile bars (ties) modelled in this work are cast using UHPFRC with 160 kg/m3 of steel fibres and tested in a direct tensile test. The NLFEM developed for UHPFRC reinforced flexural beams used in previous research is improved and applied in order to validate the mechanical tensile characterisation of UHPFRC when direct tensile reinforced elements are considered. As it happens with the flexural elements, in this case the shrinkage and tension stiffening effects are essential in the model to simulate the reality of the tensile test. After the NLFEM simulation, very accurate results are obtained that lead to consider the reliability of the NLFEM model developed not only for flexural reinforced elements, but also for direct tensile ones.
Finite Element Modelling of UHPFRC Tensile Bars
RILEM Bookseries
Serna, Pedro (Herausgeber:in) / Llano-Torre, Aitor (Herausgeber:in) / Martí-Vargas, José R. (Herausgeber:in) / Navarro-Gregori, Juan (Herausgeber:in) / Mezquida-Alcaraz, Eduardo J. (Autor:in) / Navarro-Gregori, Juan (Autor:in) / Khorami, Majid (Autor:in) / Serna, Pedro (Autor:in)
RILEM-fib International Symposium on Fibre Reinforced Concrete ; 2021 ; Valencia, Spain
Fibre Reinforced Concrete: Improvements and Innovations II ; Kapitel: 83 ; 965-975
RILEM Bookseries ; 36
05.09.2021
11 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Finite Element Modelling of UHPFRC Tensile Bars
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