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, which was constructed by joining two hollow cylinders by adhesion and the clamping them together using a tap bolt with an initial clamping force, 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 for estimating the strength of the combination joint was proposed. Experiments were performed and the analytical results were consistent with the experimental results concerning the 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 combination joint increases. Furthermore, the strength in the case where rectangular T-shape flanges were used was examined by both analyses and experiments. The characteristics of the combination joint were elucidated.

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