Khoruzhyi M. Stability of medium thickness anisotropic shells of revolution zero gaussian curvature

The thesis is devoted to solving important scientific and technical problem, the essence of which is to create based refined nonlinear theory of anisotropic type shell Timoshenko computational model and research the stress-strain state and stability medium thickness anisotropic shells of revolution zero gaussian curvature under axial compression and uniform external pressure. To achieve this goal by using a modified mixed variational principle derived linear and non-linear system of equations describing the stress-strain state of anisotropic composite shells of revolution. Developed ratio of the nonlinear theory of shells Timoshenko type with unlimited troughs and angles of rotation. Based on these algorithms compiled and developed computer software with numerical calculations of the stress-strain states and sustainability medium thickness anisotropic composite membranes zero gaussian curvature. The results on the influence of anisotropy and nonlinear deformation to the loss of stability of anisotropic composite shells of zero curvature.