The finite element model and numerical solution of the contact problem in the presence of nonlinear deformable layer between interacting bodies are considered.To discretize the contact layer,frame-rod contact finite elements are used,which also model different contact states(separation,clutch,friction-slip,etc.).The use of frame-rod contact elements allows the physical nonlinearity of the contact layer to be reduced to the internal nonlinearity of the system of contact elements,while the nonlinear properties of the seam will be set through the nonlinear characteristics of the individual rods of the contact elements.The numerical algorithm for solving the contact problem is based on the method of step-by-step analysis with iterative refinement of the solution for the current load level.With its help,the numerical solutions of the problem of contact of the structure with the base under different conditions of the contact seam have been obtained and analyzed.
展开▼
