On the role of structural theories on aeroelastic models

Proper structural theories in aeroelastic models are of primary importance to obtain reliable predictions in static and dynamic cases. Such a necessity stems from the characteristics of the structural systems and the complexity of the aeroelastic phenomena. Among the others, thin-walled architectures, anisotropic material systems, and couplings may undermine the accuracy of poorly modelled structures. Furthermore, the computational efficiency of aeroelastic models dictates limitations concerning their size, and a trade-off with accuracy is necessary. The use of 1D or 2D refined structural models proved to be effective in limiting the computational size and retaining the model's accuracy. This work provides an overview of aeroelastic problems solved using higher-order models and based on the Carrera Unified Formulation (CUF). Comparisons with results from classical approaches and experiments are given and discussed. Finally, future perspectives, including the possibility of extending CUF to aerodynamics and fluid-structure interactions, are drawn.