Simplified models of bolted joints under harmonic loading

Bolted joints are able to provide the majority of damping for an assembled structure when used to connect components. The dynamic frictional contact analysis of a bolted joint under harmonic loading is investigated by the finite element method. Then the detailed finite element model is replaced by a number of Jenkins elements and the Bouc–Wen model by fitting the hysteresis loops produced by the finite element method. These two latter models lead to much reduced computing load. The advantages and drawbacks of these two simplified models are discussed and this understanding is useful in choosing the right simplified model for a bolted joint.