Static/Dynamic Solutions and Validation of a Refined Anisotropic Thin-Walled Beam Model

Abstract

Validation of a refined anisotropic thin-walled beam model is presented. With the recent development of an exact solution methodology, the underlying numerical method‐the Extended Galerkin’s Method‐ which was formerly used in the validation has been directly tested. The validation concerns the basic framework of an existing anisotropic thin-walled beam model and a couple of non-classical eects are further incorporated. Three types of lay-up configurations, namely, the cross-ply, circumferentially uniform stiness (CUS), and circumferentially asymmetric stiness (CAS) are investigated. Non-classical eects on the static responses and natural frequencies are also investigated. Comparisons of the predictions by the present model with the experimental data and other analytical as well as numerical results are conducted and pertinent conclusions are outlined. This work is the first attempt to validate a class of refined thin-walled beam model that has been extensively used towards the study, among others, of dynamic response, static aeroelasticity and structural/aeroelastic feedback control.