Considered sharing FEM and BEM for the calculation of the dynamic behavior of the surface structures on the basis of a multilayer. To implement the BEM in calculating base proposed analytical method is effective for an arbitrary number of layers and the relations of their parameters. Given system approximating functions in the interface methods and proposed numerical integration formulas on the mating elements.
Keywords: finite element method, boundary element method, laminated base, fundamental solutions.
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In the framework of the nonlinear buckling considered the problem of determining the critical pressure, distributed over the face of the cylindrical shell. Buckling criterion is the appearance of positive acceleration directed along the normal to the middle surface of the shell. Numerical solution of the system implemented in MathCAD. Given its comparative analysis with the known solution formula Papkovich.
Keywords: cylindrical shell, nonlinear stability, numerical solution, the system MathCAD.
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