A simple methodology for the design of metallic lap joints bonded with epoxy/ceramic composites

In the present study it is proposed a shape factor that allows correlating the static strength of two single lap joints with different geometries. The formula is valid for epoxy/ceramic composites used as adhesive in special applications in oil and gas industry and highly resistant metallic adherends. Therefore, only a few tests performed in particular joint taken as reference are necessary for assessing the structural integrity of any similar joint with arbitrary geometry. Results from tensile tests performed in joints with different bonding areas are compared with model prediction showing a good agreement.