Investigation on the effect of wave shape and number on the strengthening of wavy adhesive joints

Increasing in the adhesive joint strength is followed by expanding on its application. Employment of wavy edge configuration in comparison to the traditional single lap joint is a one way to increase the adhesive joint strength with thin adherent. In this paper the effects of wavy configuration on the strength of the wavy joints were studied. Araldite 2015 was employed in this study. Araldite 2015 is a two component¡ room temperature curing paste adhesive giving a resilient bond. It was observed that the wavy joints have more strength than the single lap joint about 35%. For more investigation¡ a 3D finite element model was developed. In this study the cohesive zone model (CZM) was used for simulating the adhesive behavior. The effects of wave shape and number on the strengthening of wavy joints were studied. The finite element results were in good accordance with the experimental outcomes for the strengthening of wavy edges.