The method of constructional anisotropy for the supported shells taking into account various  ribb rigidity and different material properties

The method of the constructional anisotropy for the supported (ribbed) shells, in which jointly are taken into account geometrical nonlinearity, transversal shifts, discrete position of the ribs, their final width, height (constant or various), shear and torsion rigidities, as well as orthotropic, nonlinear elasticity and creeping of the material.