Equivalent Dynamic Modeling for the Relative Rotation of Bolted Joint Interface Using Valanis Model of Hysteresis

Dynamic modeling of the joint interface is critical to performance analysis bolt-jointed structures. In this work, an equivalent method was presented for relative rotation in beam As transverse vibration studied structure closely related joint, which different from previous studies that focused on tangential slip interface, Valanis model used joint. addition, shear deformation and rotational inertia were considered modeling, using a finite element employed Timoshenko elements. The parameters determined by fitting series hysteresis loops obtained transient nonlinear 3D FEM model. results show proposed can accurately simulate dynamic response dissipation jointed with significantly high computational efficiency. maximum errors amplitude energy are 5.5% 8.3%.