20327

Déformation dיun stratifié composite au voisinage dיactionneurs piézoélectriques discrets intégrés dans le stratifié

117

134

18

In this study, a model of behavior was written ofthe isotropic plates and multilayer plates of active composites (contain piezoelectric actuators) in the case offixed-free plate. Three methods of resolution were proposed to solve relevant equations, and a fourth one by finite elements using a ROBOT program. The results given by the different methods were so close to each other and to the one given by the ROBOTprogram. In most cases the difference never exceeded J0%. Once the method is verified the influence ofmany parameters on the flexion behavior of the plates was studied, for instance: fiber percentage, thickness, orientation and positioning of the plies inside the plates, and the voltage applied. In all of cases of calculation, equivalent modules have been used taking into consideration the mechanical constraint ofcomposite and actuators. However, it was found that the positioning located of an actuator in a plate or covered its equivalent on all over the plate gives same results which facilitates the resolution ofthe behavior equations.

1204356