Use of Third-Order Piston Theory in Panel Flutter Analysis on Composite Laminated Plates with NASTRAN

Resumo

Panel Flutter is an aeroelastic instability of plates and shells of aerospace vehicles. The phenomena have

recently grown of interest as the increased efforts to make supersonic and hypersonic flight viable in the upper lay-
ers of the atmosphere. Many results are available in the literature using customized programs to study panel flutter

with non-linear structural and aerodynamics models. In this work, the third-order Piston Theory is used in the su-
personic panel flutter analysis and an evaluation of the NASTRAN capabilities. Later, the mesh convergence study

and, subsequentially, the flutter analysis of a metallic and a composite laminated plate is performed. The obtained
results show a good agreement with the literature and, therefore, demonstrate the capability of the methodology
for the cases developed in this work.