Finite Element Numerical Simulation-Based Fatigue Life Analysis on High-Temperature Gas-Cooled Reactor

Abstract

The high-temperature gas-cooled reactor ensures the smooth flow of helium in the reactor. At the same time, the high-temperature flowing gas also has a great impact on the equipment. In this paper, through the finite element numerical simulation analysis of the rod part in the equipment, according to the expansion mechanism of fatigue crack in fracture mechanics, combined with the actual material parameters of the inner rod, the residual fatigue life is calculated. It has certain guiding significance for the calculation of residual fatigue life of high temperature gas cooled reactors.