抄録
The delamination propagation behaviors of FRP/Metal double lap adhesive joints under cyclic loading were analytically and experimentally examined. The stress singularity parameter and energy release rate were analyzed for each delamination length by FEM stress analysis. The FEM analysis shows that stress is higher at the corner than the center of the double lap adhesive joints. Secondaly the delamination propagation rates measured under cyclic loading shows that the delamination propagation rates can be estimated both by the range of stress singularity intensity and the energy release rate range. Finally the fatigue life of FRP/Metal double lap adhesive joints is found to be mostly determined by delamination process.
