Passive Method for Dynamic Loads Alleviation Using Structural Buckling in a Composite Wing

This paper presents a research conducted under the ERC-NABUCCO project, funded by the European Union, which aims to enhance the structural efficiency of next-generation aircraft by utilizing controlled buckling of wing box components as a passive method for dynamic load alleviation. Within this framework, a dedicated non-linear, low-fidelity simulation tool has been developed to evaluate the impact of buckling on the load envelope and quantify the passive alleviation achievable through this mechanism. The findings from a sensitivity analysis performed on a stick model serve as key inputs for the buckling-driven structural design of the wing box, guiding its optimization for improved performance.