The Strength of Joints Combinging Adhesion with Tap Bolts. The Case where Adherends are Hollow Cylinders and T-Flanges.

Abstract

This paper deals with the strength of joints that combine adhesion and tap bolts. When an external load was applied to a combination joint formed after joining two hollow cylinders by adhesion, they were clamped by a tap bolt with an initial clamping force, and the stress distributions in the adhesives and the variation of the bolt axial force were analyzed using an axisymmetric theory of elasticity. In addition, a method to estimate the strength of the combination joint was proposed. Experiments were performed. The analytical results are consistent with the experimental results concerning the variation of the bolt axial force and the joint strength. It is seen that the strength of the combination joint increases as the length of the tap bolt increases. Furthermore, the strength of the T-type butt adhesive joint combined with tap bolts was examined from both analyses and experiments. The characteristics of the combination joint were clarified.