Different Materials Interface Stress Singularity Problem And Its Finite Element Analysis

The effects of elastic module and Poisson ratio on the singular stress fields in dissimilar materials are studied in this paper. For many dissimilar materials are used under temperature loadings, the effects of materials' constants on the singular stress fields are also discussed. The hybrid element method is applied to get bonded materials' characteristic equations and the stress and strain fields near the tip of the interface of bonded materials. The numerical results show mat the FEM models applied in this paper are correct, and the hybrid element method is effective in approving calculation efficiency.