LARGE-AMPLITUDE VIBRATIONS OF RECTANGULAR PLATES IN AIR OR COUPLED TO FREE SURFACE LIQUIDS: THEORY AND EXPERIMENTS
Large-amplitude vibrations and postbuckling of isotropic rectangular plates subjected to thermal variations and in presence of fluid-structure interaction are studied. Geometric imperfections are taken into account since they play a fundamental role. The plate is modelled by using the Von Kármán hypothesis and the equations of motion are obtained by using an energy approach. A pseudo-arclength continuation method is used in order to obtain numerical results. Laboratory experiments have been performed to support the numerical results and an experimental method for measuring the free surface waves of the liquid in contact with the plate has been introduced and tested.