Distinction of Stress Concentration Phenomenon in Axisymmetric Dissimilar Materials by Elastic Parameters

The distinction between good pair and bad pair about the stress singularity at the interface edge for axisymmetric dissimilar materials can be made in the same way as in plane strain problems by Dundurs' parameters. However, the authors pointed out previously that, different from plane strain problems, the stress concentration at the interface may occur in the case of axisymmetric problems. In this report, the distinction conditions about the stress concentration are given by applying elastic parameter (α, β, γ) proposed previously and its validity is demonstrated through finite element analysis.