Mathematical simulation of deformational and relaxation process in capillary-porous materials

Within mechanics of heterogeneous media there was developed a mathematical model of stress-deformable - state of wood as a three-phase system consisting of solid (wood material), liquid and air-vapor mixture phases. Defining relation allow to describe elastic, viscoelastic, residual strain deformations and deformations caused by mechanism of mechanical and sorption creep. The object-oriented software was created to implement the mathematical model of viscoelastic deformation of capillary-porous materials using the finite element method.