Homogenized elastic–viscoplastic behavior of anisotropic open-porous bodies with pore pressure

摘要: Abstract Constitutive modeling is studied for the homogenized elastic–viscoplastic behavior of pore-pressurized anisotropic open-porous bodies made metallic base solids at small strains and rotations. For this purpose, by describing micro–macro relations relevant to periodic unit cells subjected pore pressure, constitutive features are discussed viscoplastic macrostrain rate in steady states. On basis found, represented as an function Terzaghi’s effective stress, which shown using Hill’s macrohomogeneity condition. The resulting equation used simulate ultrafine plate-fin structure uniaxial/biaxial loading addition pressure. corresponding finite element homogenization analysis also performed comparison. It demonstrated that developed simulates well effect pressure range spite there being no factor fitting parameter stress itself.