Fracture mechanics analysis of a composite piezoelectric strip with an internal semi-infinite electrode

IA piezoelectric strip with semi-infinite electrode is investigated. Two combinations of mechanical-electrical loadings are considered. They consist of the anti-plane deformation with in-plane electrical field and the in-plane electroelastic field. Based on the Fourier transform and the Wiener-Hopf technique, the electroelastic local stress fields are found to exhibit the square root singularity near the electrode tip. The energy density factor criterion is applied to examine the fracture behavior near the electrode tip.