THE STRENGTH OF JOINTS COMBINING ADHESIVES WITH TAP BOLTS - CASES WHERE ADHERENDS ARE HOLLOW CYLINDERS AND RECTANGULAR T-SHAPE FLANGES

This paper deals with the strength of joints that combine adhesion and tap bolts. When an external load was applied to a combination joint, which was constructed by joining two hollow cylinders by adhesion and the clamping them together using a tap bolt with an initial clamping f orce, the stress distributions in the adhesives and the variation of t he bolt axial force were analyzed using an axisymmetric theory of elas ticity. In addition, a method for estimating the strength of the combi nation joint was proposed. Experiments were performed and the analytic al results were consistent with the experimental results concerning th e variation of the bolt axial force and the joint strength. It is seen that, as compared with the adhesive joint in which two tap bolts are used, as the length of the tap bolt increases, the strength of the com bination joint increases. Furthermore, the strength in the case where rectangular T-shape flanges were used was examined by both analyses an d experiments. The characteristics of the combination joint were eluci dated.