Intensity of singular stress field in bonded body under arbitrary material combination

Abstract

In the earlier studies, the singular indexes at the vertex and along the side on the interface in the 3D bonded body were computed by the eigen analysis based on the FEM. It has been shown that the eigen equation has the single real root under bad pair condition. Then, the authors have proposed the proportional method for calculating the intensity of the singular stress field (ISSF) at the vertex in 3D bonded body. In this study, the ISSFs are calculated by changing the material combinations. The differences between dimensionless ISSFs for 3D bonded body and 2D bonded plate are discussed. It is shown that dimensionless ISSFs for 3D bonded body is almost controlled by Dundurs’ parameters.