126 Evaluation of intensity of singularity at 3D Piezoelectric bonded joints under electrical load using a conservative integral

Abstract

In the present study, the conservative integral formulation is developed for calculating the intensity of singularity at a vertex of the interface in three-dimensional piezoelectric dissimilar material joints. An electrical load is applied to the joints. In order to investigate the influence of integral area on the accuracy of the results, models with various integral areas are used. Finally, the distribution of stresses and electric displacements are compared with the FEM results, in which using a model with extremely refined meshes near the singular point.