Stateczność osiowo ściskanych cylindrycznych powłok dwuwarstwowych

Analysis of three-axial displacements state in two-layer shell filler is described. Tested composite cylinder consists of the thin external shelf (lining) and elastic filler (core) – which are in ideal matching. Lining assumptions of the two-dimensional satisfies layer theory, and the core-of the three dimensional theory. For a such model displacement functions in the core were determined. On the base of analytic solution we have obtained critical load for full core cylinder with axial compression. Relatively simple case of axial-symmetrical buckling was examined. Theoretical solution was compared with accessible experimental tests results.