A cohesive zone model for the electromechanical damage of piezoelectric/ferroelectric materials

A numerical fracture analysis of piezoelectric and ferroelectric materials is conducted using an advanced exponential cyclic cohesive zone model. The implemented irreversible cohesive law allows for the damage accumulation during subcritical electromechanical loading. Change in polarization direction (as a result of ferroelectric domain switching) due to applied electromechanical loading is taken into account. A generalized capacitor model...