@article{article_1729855, title={A numerical study on the lateral torsional buckling behaviour of aluminium/CFRP hybrid I-beam}, journal={Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi}, volume={14}, pages={1313–1327}, year={2025}, DOI={10.28948/ngumuh.1729855}, author={Taş, Hamza}, keywords={Lateral torsional buckling, Finite element analysis, Hybrid I-beam, Aluminium, Carbon fibre reinforced polymer}, abstract={This work intends to numerically investigate the impacts of bonding carbon fibre reinforced polymer (CFRP) laminates to either the web or the flange of 6061-T6 aluminium alloy I-beam on the lateral torsional buckling (LTB) characteristic. The effect of laminate thickness, fibre orientation angle, laminate length, and laminate location was examined. In all hybrid I-beams, web and flange thicknesses were kept equal to those of aluminium (Reference) I-beam. Finite element (FE) models of aluminium and aluminium/CFRP hybrid I-beams were developed using Abaqus/Standard. Model verification was carried out by comparison of the numerical findings with experimental results available in the existing literature. A strong concordance was observed between the experimental and numerical findings, with a relative error of 3.3% at the critical LTB bending moment (Mcr). Attaching a 3 mm-thick CFRP laminate, aligned at 0° fibre orientation, to the flange of an I-beam increases the Mcr by 47.5% compared to the aluminium I-beam.}, number={4}, publisher={Nigde Omer Halisdemir University}