The Research of Reliability on the Pipeline Cracks by Stochastic Finite Element

Based on the crack-making principle of penetrating crack and the material parameters, geometry parameters and loading parameters. The paper presents the geometry non-linear stochastic finite element function of pipeline's square-third order matrix, and the reliability on the crack of random machinery damage was calculated, then it was showed that the reliable research was truce and had a significance for appraising the pipeline reliability.