%0 Journal Article %A Tuktarov, Sergei Aleksandrovich %A Chedrik, Vasilii Vasil'evich %D 2015 %I Begell House %K structural modeling, composite material, finite-element method, high-aspect-ratio wing, plate-beam analogy %N 3 %P 289-305 %R 10.1615/TsAGISciJ.2015014306 %T SOME ASPECTS OF MODELING A HIGH-ASPECT-RATIO COMPOSITE WING-BOX BY AN ANISOTROPIC BEAM %U https://www.dl.begellhouse.com/journals/58618e1439159b1f,5bfa815a5f46340e,454eb8eb331e46d2.html %V 46 %X Two analytical approaches to modeling a high-aspect-ratio composite wing-box by an anisotropic beam with and without the restraint of strains in the cross section are presented. Finite-element models corresponding to these methods are constructed. The results of the analytical and numerical models for a test example of a wing-box are compared. The influence of anisotropy on the stiffness characteristics of the wing-box structure under bending and torsion is studied. The stress−strain state and the strength of the wing panel under tensile and compressive loading are investigated. %8 2015-09-29