Comparison of thermoset wing panels for aircraft applications - Life Cycle Assessment

One of the ongoing paradigm-shifts in manufacture of civilian aerostructures is the gradual departure from classic prepreg-autoclave manufacturing, and the identification of less energy intensive manufacturing routes. To that end, a set of innovative technologies and alternate materials were implemented in a novel unified thermoset composite manufacturing scheme based on Liquid Resin Infusion by ecoTECH core partner consortium.
• Novel automated preforming strategies with dry unidirectional fabrics
• Optimized infusion processes at room temperature, with sustainable polymer resin and corresponding infusion strategies
• A novel smart mold with micro-vibrations for improved fiber wetting and integrated sensors.
Each technology was developed and matured, both independently and in confluence with the others. Finally, a 1700 mm x 700 mm stabilizer panel, with slight curvature and integrated omega stiffener elements, was manufactured – demonstrating and validating the various technology developments.