Abstract
Elasto-plastic deformation and fracture strength of single lap joints were investigated experimentally and analytically. The joint adherends were carbon steel and aluminum alloy. The adhesive was epoxy resin. The stress and strain in the joints under tensile loading were analyzed by using elasto-plastic finite element method. The variation of plastic region in the joints was examined with increasing applied load. The stress and strain curves in the adherends were compared with the experimental results. The fracture strength of breaking the joints was examined based on the stress and strain conditions in the adhesive layer and adherends near the adhesive interfaces.
