Singularity at the interface edge of bonded transversely isotropic piezoelectric dissimilar materials

Theoretical analysis of the singular field near an interface edge of bonded axisymmetric transversely isotropic piezoelectric materials has been carri ed out. The eigen-equation determining the singular order, and the stress a nd electric displacement fields are deduced in details. The results show th at the singular order depends on the geometry shape of the interface edge a nd the material combination. It is found that the piezoelectric and dielect ric constants have no effect on the singularity under the torsion loading c ondition, but have a complicated effect under axisymmetric deformation cond ition. It is of interest that the electric displacement also behaves as sin gular, and its magnitude can be described by the same parameter as the inte nsity coefficient of the stress field. The analysis of bonded axisymmetric piezo/isotropic materials has also been carried out.