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19 papers · 1 filter
Temperature induced pore fluid pressurization in geomaterials
Siavash Ghabezloo, Jean Sulem
The theoretical basis of the thermal response of the fluid-saturated porous materials in undrained condition is presented. It has been demonstrated that the thermal pressurization…
Modelling plasticity of unsaturated soils in a thermodynamically consistent framework
O. Coussy, Jean-Michel Pereira
Constitutive equations of unsaturated soils are often derived in a thermodynamically consistent framework through the use a unique 'effective' interstitial pressure. This later is…
Revisiting the thermodynamics of hardening plasticity for unsaturated soils
Olivier Coussy, Jean-Michel Pereira, Jean Vaunat
A thermodynamically consistent extension of the constitutive equations of saturated soils to unsaturated conditions is often worked out through the use a unique 'effective' interst…
Symplectic schemes for highly oscillatory Hamiltonian systems: the homogenization approach beyond the constant frequency case
Matthew Dobson, Claude Le Bris, Frederic Legoll
We follow up on our previous works which presented a possible approach for deriving symplectic schemes for a certain class of highly oscillatory Hamiltonian systems. The approach c…
A multiple replica approach to simulate reactive trajectories
Frédéric Cérou, Arnaud Guyader, Tony Lelièvre +1
A method to generate reactive trajectories, namely equilibrium trajectories leaving a metastable state and ending in another one is proposed. The algorithm is based on simulating i…
Second gradient poromechanics
Giulio Sciarra, Francesco dell'Isola, Olivier Coussy
Second gradient theories have been developed in mechanics for treating different phenomena as capillarity in fluids, plasticity and friction in granular materials or shear band def…