Abstract
In the present work, bending of adhesive-bonded sheet metals were investigated by performing V-bending experiments. A serious problem encountered in the V-bending was bending-induced large transverse shear deformation of adhesive layer, which leads to geometrical imperfection of bent sheets (so-called 'gull-wing' bend). It was found both from the experimental observations and the elasto-plastic stress analysis that the large shear deformation progresses rapidly only at the final stage of V-bending Consequently, air-bending operation for adhesive-bonded sheet metals is recommended for suppressing the shear deformation of adhesive layer within an acceptable limit.
