Vibrational response of aero-excited composite plates subjected to damage growth

摘要

This paper investigates flow-induced vibrations of a multi-layered composite plate with delaminations. Presented solutions are valid for delaminations of arbitrary size and shape and located anywhere in the plate. This study has been focused on determining airflow velocities corresponding to the onset of aeroelastic instability (flutter) for given plate configuration and delamination characteristics. Results obtained for damaged plates have been compared with results obtained for pristine plates. The effect of delamination on plate dynamics has been presented. Plates have been modeled using the finite element method.