Shape control and damage identification of beams using piezoelectric actuation and genetic optimizationShape control and damage identification of beams using piezoelectric actuation and genetic optimization Peer-Reviewed Journal Publication Δημοσίευση σε Περιοδικό με Κριτές 2015-10-112006enThis paper deals with the shape control of beams under general loading conditions, using piezoelectric patch actuators that are surface bonded onto beams to provide the control forces. The mathematical formulation of the model is based on the shear deformation beam theory (Timoshenko theory) and the linear theory of piezoelectricity. The numerical solution of the model is based on the development of superconvergent (locking-free) finite elements using the form of the exact solution of the Timoshenko beam theory and Hamilton’s principle. The optimal values for the locations of the piezo-actuators are determined and optimal voltages for shape control are obtained for cantilever beams by using a genetic optimization procedure. Finally, a simplified related damage identification problem is formulated and solved using static data and genetic optimization.http://creativecommons.org/licenses/by/4.0/International Journal of Engineering Science744409–421 Stavroulakis Georgios Σταυρουλακης Γεωργιος E.P. Hadjigeorgiou C.V. Massalas Elsevier Engineering, Mechanical mechanical engineering engineering mechanical