Numeryczne rozwiązanie zagadnienia stateczności ortotropowej płyty pierścieniowej

The problem of calculating the critical load of cylindrically orthotropic annular plates under uniform pressure is solved by the Rayleigh-Ritz method. Up to now the problem was solved only under certain loading and supporting conditions. The approximate solution presented and the numerical results of computation obtained contain the following examples of plates: – loaded by different pressures applied to the inside and at the outside edges; – supported according to 12 various schemes; – isotropic and orthotropic. The method of calculating the number of diametral nodal lines corresponding to the least critical value was given.