Micromechanical approach to the behavior of poroelastic materials

摘要: A micromechanical analysis of the behavior saturated elastic porous media is presented. Pores are connected and with a fluid at uniform pressure. The non-linear macroscopic response medium assumed to be related existence network microcracks in solid phase. progressive closure cracks during loading viewed control material non-linearity. Using averaging schemes based on both classical modified secant methods, non-linearity overall shown sometimes controlled by an effective stress. method accounts certain way for non-uniform distribution strains within Different definitions stress found, each them being combination hypothesis connexion between pores discussed details. consequences this illustrated comparisons made experimental data.