Load and Deformation Distribution Along the Bolt During Assembly Process

Bolt connection structure is widely utilized in modern large-scale equipment. Understanding the stress distribution along the bolt during assembly process is essential for improving its reliability. In this paper, assembly torque model is established to formulate the relationship between tightening torque and preload force, and a linear proportionality between them is obtained. The stress distribution during assembly process is modeled. Rotation angle and displacement distribution can be obtained from the proposed method. To validate our model, numerical simulation analysis is carried out to obtain the load and deformation distribution under different conditions. Comparison with the previous literature confirms the accuracy of the proposed model.