This thesis compares numerical approaches to modelling composite structures. 2D shell, 3D shell, and combined elements were tested and validated against the tensile and bending experiments. The results indicate that the combination of 2D and 3D shell elements achieves the closest agreement with experimental findings, whereas the individual approaches tend to either overestimate or underestimate stiffness. The proposed combined model therefore provides a more reliable prediction of the mechanical response already in the design phase.
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