Abstract
In the present work a finite element approach is established for the analysis of sandwich plates with different anisotropic composite facings due to aerodynamic and thermal fields. The main contribution of this study is the consideration of the inherent coupling phenomenon of stretching and bending in such non-symmetric composite sandwich plates. Consequently, the stiffness matrix includes now sub-matrices which relate the “generalized” transverse thermal (or aerodynamic) loads to the in-plane displacements, and the in-plane forces to the “generalized” transverse displacements. These sub-matrices do not exist in symmetrically layered sandwich plates and their inclusion in the analysis is shown to be of primary importance. Three examples are included, indicating the sensibility of the stress and displacement fields to the class of heterogeneity and anisotropy of the considered sandwich plates.
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