On characteristics of a bolted joint with a tap bolt

Abstract

The purpose of this paper is to examine a distribution of contact pressures on the interface of a cylindrical clamped part fastened with a tap bolt to a base which is sufficiently larger than the clamped part. The analysis is treated as a contact problem of two bodies. In order to obtain the distribution of contact pressures, the iteration method is used by the three dimensional theory of elasticity. Experiments are carried out and the analytical results show a fairly good agreement with experimental ones. In addition, the force ratio, which is the ratio of an increment of bolt axial force to a load when the load is applied on a bolted joint, is analysed. Corresponding to this analysis, an experiment is carried out, and the analytical result shows a fairly good agreement with experimental one.