Pre-tightening Force Analysis of Different Bolt Models Based on Finite Element Simulation

This article adopts three common bolt modeling methods among scholars and uses Workbench to simulate and analyze the three models under the same preload force, obtaining different simulation results. The advantages and disadvantages of the three modeling methods were analyzed by comparing the simulation results with the theoretical calculation results. It was proposed that for components that may fail due to fatigue at the root of the thread, refined modeling in the fatigue life calculation process is necessary, which provides a reference for theoretical simulators.