On the coupling effects of piezoelectricity and flexoelectricity in piezoelectric nanostructures

摘要: Flexoelectricity is a novel kind of electromechanical coupling phenomenon that prevalent in all solid dielectrics and usually vital importance nanostructures soft materials. Although the fundamental theory flexoelectric solids related beam or plate theories were extensively studied recent years, effect flexoelectricity piezoelectricity piezoelectric has not been completely clarified yet. In present work, geometrically nonlinear model established with focus on effect. The constitutive equations for plates are derived under both electrically short-circuit open-circuit conditions. It found due to between piezoelectricity, stretching-bending stiffness arises homogeneous its specific value relies applied electrical boundary effects flexoelectric-piezoelectric effective mech...