Application of an improved Kriging technique in reliability analysis

For reliability analysis of implicit limit state equation in engineering, an interpolation based Kriging approximation method is presented. In the presented method, the interpolation is employed to determine experimental points for Kriging approximation. Since interpolation strategy can make experimental points closely approach actual limit state equation which contributes to the reliability analysis significantly, the Kriging model can fit the actual limit state equation better. Simple procedure, high computational precision and small computational effort are advantages of the presented method, which is demonstrated by given examples.