Metallic short fiber-reinforced adhesively bonded joints

Incorporating toughening particles and fibers to the adhesive layer in adhesively bonded joints can improve energy absorption of the adhesive layer and consequently enhance overall strength of joint. In this paper, the mechanical behavior of adhesive joints reinforced by random metallic short fibers under tensile shear loading isstudied using experimental investigations. The experimental results revealed that incorporating metal short fibers in the adhesive layer of a bonded joint can considerably influence the joint strength. This was in correlation with the failure mechanisms observed on the fracture surface of the tested joints. The weight percentage of short fibers was found as the key parameter in design of short fiber-reinforced adhesive joints. It was found that 10 wt% of metallic short fibers lead to 19% shear strength improvement of adhesive

Keywords:

Joint reinforcement , Metallic short fibers , Single lap joint , Toughened adhesive