Issue 29

D. Addessi et al., Frattura ed Integrità Strutturale, 29 (2014) 178-195; DOI: 10.3221/IGF-ESIS.29.16 194 Figure 14 : Response of the T-shaped beam subjected to concentrated torque: moment vs rotation curve and warping profile. Figure 15 : T-shaped beam: evolution of damage over the cross - section of the element without (first raw) and with (second raw) warping. C ONCLUSIONS n efficient 3D beam FE formulation was presented, aiming at reproducing frame structural responses with multi- axial coupling between the stress resultants, including shear and torsion. To describe the response of structural elements, where warping mechanisms are relevant, the out of plane deformation of the beam cross-sections was A