Stateczność i stan zakrytyczny swobodnie podpartej tarczy trapezowej poddanej jednokierunkowemu ściskaniu

The approximate solution of the title problem derived on the basis of nonlinear differential equations of thin plates with initial deflection. Solution of these equations is based on the Bubnov-Galerkin method. The results of numerical calculations are presented in diagrams form. Theoretical results are verified by experiments.