Miscellanea
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Vol. 8, No. 29 (2014) pp. pages 178-195
A 3D mixed frame element with multi-axial coupling for thin-walled structures with damage
A 3D mixed beam finite element is presented, modeling the warping of the cross-sections as an independent kinematic field. The beam formulation is derived on the basis of the Hu-Washizu variational principle, expressed as function of four…