The optimization of the LRI technology was based on a scientific approach to the physics of the process, by the development of an accurate and efficient numerical simulation model that will help to better control the resin flow during the impregnation stage, avoiding filling defects and improving the robustness of the process.

The simulation model was developed during WP1 with accurate input parameters that were identified for the resin, reinforcements and the distribution media. A test bench was designed and manufactured in WP2 for the processing of large-scale stiffened wing panels demonstrators.

Finally, during WP3, the validation of the simulation models are carried out by means of the correlation of empirical test results with simulation predictions.