Finite element analysis of nonlinear deformation, stability and vibrations of elastic thin-walled structures

Thin-walled shell-type structures are widely used in various branches of technology and industry. Such under operating conditions usually exposed to loads, including thermomechanical ones. Real shell structures, as a rule, have complex shapes. To increase reliability, reduce material consumption, for technological reasons, they designed inhomogeneous systems thickness. This causes great constant interest engineers designers the problems investigating behavior elastic thin-walled structures.
 The work is devoted method analysis geometrically nonlinear deformation, stability, post-buckling natural vibrations thin shells shape structure action static loads. unified design model has been created on basis developed universal spatial finite element with introduced additional variable parameters. takes into account multilayer geometric features structural elements shell. can be reinforced ribs cover plates, weakened by cavities, channels holes, sharp bends mid-surface.
 uniform formulation made it possible create an structure. It shown number that presented this article effective tool analyzing