Journal ArticleDOI
Numerical analysis of hygro-thermal behaviour and damage of concrete at high temperature
TLDR
In this article, a computational analysis of hygro-thermal and mechanical behavior of concrete structures at high temperature is presented, and the evaluation of thermal, hygral and mechanical performance of this material, including damage effects, needs the knowledge of the heat and mass transfer processes.Abstract:
A computational analysis of hygro-thermal and mechanical behaviour of concrete structures at high temperature is presented. The evaluation of thermal, hygral and mechanical performance of this material, including damage effects, needs the knowledge of the heat and mass transfer processes. These are simulated within the framework of a coupled model where non-linearities due to high temperatures are accounted for. The constitutive equations are discussed in some detail. The discretization of the governing equations is carried out by Finite Elements in space and Finite Differences in time. Copyright © 1999 John Wiley & Sons, Ltd.read more
Citations
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Journal ArticleDOI
Correlation between transient creep of concrete and its dehydration
TL;DR: In this article, the transient thermal creep of concrete subjected to high temperatures is investigated and the mass loss of the cement paste corresponding to the HPC is investigated through a thermo-gravimetric analysis (TGA).
Journal ArticleDOI
Modeling of 3D moisture distribution in heated concrete: From continuum towards mesoscopic approach
TL;DR: In this paper, a fully coupled 3D thermo-hydo-mechanical (THM) model on the mesoscale is presented and used for simulating an experiment with a single aggregate for the purpose of investigating the influence of the aggregate on the drying front.
Journal ArticleDOI
A three-dimensional staggered finite element approach for random parametric modeling of thermo-hygral coupled phenomena in porous media
TL;DR: A 3D finite element modeling of heat and mass transfer phenomena in partially saturated open porous media with random fields of material properties is presented, based on a specific iterative algorithm to account for the interaction between all the transfer processes.
Journal ArticleDOI
Theoretical Investigation into the Thermo-Mechanical Behaviours of Tunnel Lining During RABT Fire Development
TL;DR: In this paper, a theoretical method is presented to investigate the thermo-mechanical behaviours of tunnel lining during fire development, which includes three stages, i.e. temperature rising, temperature holding and cooling.
Dissertation
Etude hydro‐mécanique et thermo‐mécanique du béton. Influence des gradients et des incompatibilités de déformation
TL;DR: In this paper, the authors present simulations based on the logiciel aux Elements Finis Cast3M to determine l'effet of two mecanismes, i.e., the gradients (hydriques ou thermiques) and the incompatibilites de deformations pâte de ciment/granulat, in a mesoscopique and a macroscopique.
References
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Book
The finite element method
TL;DR: In this article, the methodes are numeriques and the fonction de forme reference record created on 2005-11-18, modified on 2016-08-08.
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Dynamics of fluids in porous media
TL;DR: In this paper, the Milieux poreux Reference Record was created on 2004-09-07, modified on 2016-08-08 and the reference record was updated in 2016.
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Hydraulics of Groundwater
TL;DR: The reference record was created on 2004-09-07, modified on 2016-08-08 as discussed by the authors, using the reference record of the Ecoulement souterrain reference record.
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Dynamics of fluids in porous media
TL;DR: In this article, the authors present the definitive work on the subject by one of the world's foremost hydrologists, designed primarily for advanced undergraduate and graduate students of ground water hydrology, soil mechanics, soil physics, drainage and irrigation engineering and sanitary, petroleum and chemical engineering.
Book ChapterDOI
Simultaneous Heat, Mass, and Momentum Transfer in Porous Media: A Theory of Drying
TL;DR: In this article, the authors present a general theory that provides a starting point for the construction of special theories so that various drying processes can be studied analytically without recourse to an enormous computational effort.