"The activities encompassed in this proposal, aimed to provide a trade-off study between a reference wing stub box design and alternative advanced designs of the same structure incorporating new technologies, will exploit a methodological approach, which will allow to efficiently solve the simulation problem, by tackling all possible issues related to management of the geometries, definition of a high-quality mesh, application of specific composite material behavior laws, up to loading, solution and post-processing.The advanced character of the forecast approach is linked to the following aspects:- the complete modeling process will be integrated into a parametrized global process flow that, under the control of the Multi-Objective Optimization algorithms implemented within the modeFRONTIER tool, will allow a quick and complete exploration of the influence of the parameters that can influence the system performances;- the complete set of analyzed models will be explored (again using the modeFRONTIER tool) to rank them with respect to their key performances and to select the optimal candidate(s) considering the multiple selected objectives, by exploiting the mostly advanced Multi Criteria Decision methods."