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Poromechanics of Swelling in Nanoporous Materials: Motivations and Introduction of Strain Effects on Adsorption
A poromechanical model is presented for estimating swelling of nano-porous media fully saturated with a fluid phase. From the Gibbs adsorption isotherm, the effective pore pressure and the volumetric strain are estimated incrementally taking into account the variations of porosity upon swelling and therefore the variations of the poromechanical properties (apparent modulus, Biot coefficient, Biot modulus). Moreover the interaction between swelling and the adsorption isotherms are examined by proposing a correction to the Gibbs formalism to estimate the truly exceeding adsorbate quantities upon swelling. First comparisons with experimental data found in the literature are performed and a fair agreement is observed.
Poromechanics of Swelling in Nanoporous Materials: Motivations and Introduction of Strain Effects on Adsorption
A poromechanical model is presented for estimating swelling of nano-porous media fully saturated with a fluid phase. From the Gibbs adsorption isotherm, the effective pore pressure and the volumetric strain are estimated incrementally taking into account the variations of porosity upon swelling and therefore the variations of the poromechanical properties (apparent modulus, Biot coefficient, Biot modulus). Moreover the interaction between swelling and the adsorption isotherms are examined by proposing a correction to the Gibbs formalism to estimate the truly exceeding adsorbate quantities upon swelling. First comparisons with experimental data found in the literature are performed and a fair agreement is observed.
Poromechanics of Swelling in Nanoporous Materials: Motivations and Introduction of Strain Effects on Adsorption
Pijaudier-Cabot, Gilles (author) / Grégoire, David (author) / Vermorel, Romain (author) / Perrier, Laurent (author)
Fifth Biot Conference on Poromechanics ; 2013 ; Vienna, Austria
Poromechanics V ; 729-738
2013-06-18
Conference paper
Electronic Resource
English
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