Response variability of cylindrical shells with stochastic non-Gaussian material and geometric properties

In this paper, the effect of combined uncertain material (Young’s modulus, Poisson’s ratio) and geometric (thickness) properties on the response variability of cylindrical shells is investigated taking into account various non-Gaussian assumptions for the uncertain parameters. These parameters are described by two-dimensional univariate homogeneous non-Gaussian stochastic fields using the spectral representation method in conjunction with translation field theory. The response variability is computed by means of direct Monte Carlo simulation (MCS). It is shown that the marginal probability distribution and the correlation scale of the stochastic fields used for the description of the material and thickness variability affect significantly the shell response statistics.