Macroscopic constitutive equations of thermo-poroelasticity derived using eigenstrain–eigenstress approaches

Alexander P. Suvorov, A.P.S. Selvadurai
2011 Philosophical Magazine  
Macroscopic constitutive equations for thermoelastic processes in a fluid-saturated porous medium are re-derived using the notion of eigenstrain or, equivalently, eigenstress. The eigenstrain-stress approach is frequently used in micromechanics of solid multi-phase materials, such as composites. Simple derivations of the stress-strain constitutive relations and the void occupancy relationship are presented for both fully saturated and partially saturated porous media. Governing coupled
more » ... ng coupled equations for the displacement components and the fluid pressure are also obtained.
doi:10.1080/14786435.2011.557402 fatcat:sxyftim3lvhchlfjeyhihuejvi