A variationally and asymptotically consistent theory is developed in order to predict the static response of anisotropic thin-walled two-cell beams subjected to extension, torsion and bending. The theory is based on an asymptotical analysis of two-dimensional shell energy. Closed-form expressions for the beam stiffness coefficients, stress and displacement fields are provided. The influence of material anisotropy on the displacement field is identified.
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