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Experimental and finite element analysis of a hollow cylinder submitted to high temperatures
Abstract This paper presents a thermo-hydro-chemical-mechanical analysis of concrete at high temperatures. The evaluation of heat and mass transfer, evolution of the phases constituting the porous medium and mechanical performance of concrete are taken into account in a full three-phase coupled analysis. An experimental set-up and a numerical simulation are also presented. A hollow cylinder has been heated up to 523.15K (250°C) on the internal side and submitted to gas pressure/temperature measurements. A numerical simulation of the cylinder has been performed, showing good correlation with the experimental observations.
Résumé Le papier présente un modèle thermo-hydro-chemo-mécanique pour le béton à hautes températures. Les transferts de masse et de chaleur, l’évolution des phases constituant le milieu poreux, les performances mécaniques du béton sont prises en compte dans une analyse couplée avec trois phases. Un cylindre creux a été chauffé jusqu’à 523.15 K (250°C) sur la face interne tandis que les pressions du gaz et les températures ont été mesurées. Une analyse numérique du cylindre a été menée: une bonne corrélation avec les résultats expérimentaux a été obtenue.
Experimental and finite element analysis of a hollow cylinder submitted to high temperatures
Abstract This paper presents a thermo-hydro-chemical-mechanical analysis of concrete at high temperatures. The evaluation of heat and mass transfer, evolution of the phases constituting the porous medium and mechanical performance of concrete are taken into account in a full three-phase coupled analysis. An experimental set-up and a numerical simulation are also presented. A hollow cylinder has been heated up to 523.15K (250°C) on the internal side and submitted to gas pressure/temperature measurements. A numerical simulation of the cylinder has been performed, showing good correlation with the experimental observations.
Résumé Le papier présente un modèle thermo-hydro-chemo-mécanique pour le béton à hautes températures. Les transferts de masse et de chaleur, l’évolution des phases constituant le milieu poreux, les performances mécaniques du béton sont prises en compte dans une analyse couplée avec trois phases. Un cylindre creux a été chauffé jusqu’à 523.15 K (250°C) sur la face interne tandis que les pressions du gaz et les températures ont été mesurées. Une analyse numérique du cylindre a été menée: une bonne corrélation avec les résultats expérimentaux a été obtenue.
Experimental and finite element analysis of a hollow cylinder submitted to high temperatures
Pont, S. (author) / Schrefler, B. A. (author) / Ehrlacher, A. (author)
Materials and Structures ; 38 ; 681-690
2005-08-01
10 pages
Article (Journal)
Electronic Resource
English
Porous Medium , Representative Elementary Volume , Hollow Cylinder , High Performance Concrete , Intrinsic Permeability Engineering , Theoretical and Applied Mechanics , Structural Mechanics , Mechanical Engineering , Operating Procedures, Materials Treatment , Civil Engineering , Building Materials
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