2018 Volume 59 Issue 9 Pages 1440-1445
The influence of different metallic foam inter-layers on the mechanical properties of self-piercing riveted (SPR) sandwich joints is investigated in this paper. Comparing with the homogeneous sheet of AA5052, the copper, nickel, iron-nickel foams are added in the joints as inter-layers. The tensile-shear test, SEM and EDS experiments are employed to discuss the mechanical properties of SPR sandwich joints. The results indicate that the addition of metallic foam inter-layers can effectively affect the mechanical lock inside of SPR sandwich joints. The SPR sandwich joint with iron-nickel foam inter-layers exhibits the highest peak load. The SPR sandwich joint with nickel foam inter-layers exhibits the maximum failure displacement and the energy absorption value.