Dynamic response of adaptive cross-ply cantilevers featuring interlaminar bonding imperfections

The implications of slip-type interfacial bonding imperfections on the dyna mic behavior of adaptive laminated beams with surface-bonded piezoactuator layers are investigated, Numerical results are supplied, and pertinent conc lusions on the free and forced flexural motions under transient distributed loadings, as a function of the measure of bonding imperfections, are outli ned. Near the end of this problem approach, a recently developed theory of anisotropic laminated plates that incorporates the effect of imperfect inte rlaminae bondings and fulfils the shear traction continuity requirements is used. The control is achieved via the action of a piezoelectrically induce d bending moment at the tip of the beam, and in this context four different feedback control laws are employed. The obtained results reveal the powerf ul role played by the proposed control methodology toward suppressing vibra tions and attenuating the detrimental effect induced by the interlaminae bo nding flaws.