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
Effect of Fire Induced Spalling on the Response of Reinforced Concrete Beams
Kodur V.K.R.,Monther B. Dwaikat +1 more
TL;DR: In this article, a macroscopic finite element model is applied to investigate the effect of fire induced spalling on the response of reinforced concrete (RC) beams, where the pore pressure in concrete structures is calculated using the principles of mechanics and thermodynamics.
Journal ArticleDOI
Thermo-hydro-mechanical modeling of artificial ground freezing taking into account the salinity of the saturating fluid
TL;DR: In this article, a fully coupled THM model considering the salinity effect has been derived, which is completely thermodynamically consistent and introduces some simplifying assumptions, especially to describe phase change terms (capillary pressure and latent heat).
Journal ArticleDOI
Effect of heat-treatment and hydrostatic loading upon the poro-elastic properties of a mortar
TL;DR: In this article, the poro-elastic properties of a cement-based material under different levels of confining pressure, and after a heat-treatment up to 400°C, were investigated.
Journal ArticleDOI
Multiphysics Model for Consolidation Behavior of Cemented Paste Backfill
Liang Cui,Mamadou Fall +1 more
TL;DR: In this article, a three-dimensional coupled multiphysics consolidation model for CPB was developed based on the principles of the continuity of pore space and conservation of mass, energy, and momentum.
Journal ArticleDOI
Hygro-thermo-mechanical analysis of spalling in concrete walls at high temperatures as a moving boundary problem
Michal Beneš,Radek Štefan +1 more
TL;DR: A mathematical model allowing coupled hygro-thermo-mechanical analysis of spalling in concrete walls at high temperatures by means of the moving boundary problem is presented and a simplified mechanical approach to account for effects of thermal stresses and pore pressure build-up is incorporated into the model.
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.