Random field discretization method for finite element reliability analysis

Random field discrimination was used to analyze stochastic structures with spatially random properties. For criteria were considered in the choice of the random field discrimination method. A systematic method based on linear regression theory was chosen which minimized the error of the discredited field relative to its real field for non-Gaussian fields. The random field discrimination process can be done independently from the finite element discrimination process. Examples show that this method is more efficient and flexible than other discrimination methods for finite element reliability analyses.