Abstract
In this paper, L shape joints, which are subjected to a bending moment in plane, are analyzed numerically by the finite element method proposed in the previous paper. The resultant shear stress at the adhesive layer concentrates at the boundaries between the adherend plates. The values increase with the decrease of the ratio h/t (h : the thickness of adhesive layer and t : the thickness of adherend plates). These results are compared with Yamaguchi's theory proposed previously. It is obvious that he theory is too approximate. On the other hand, a practical L shape joint test, of which the adherend is an aluminum plate and the adhesive is an epoxy resin bond, is performed. The joint strength are also compared with the values estimated by using the finite element method and the corresponding fracture criteria.
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