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Roboze & the University of Campania, 3D-printed lightweight Sandwich Panels for aircraft performance

By Roboze

Material: Polypropylene (PP), carbon fiber reinforced polymers (CFRP) Machine: Roboze ARGO 500 3D printer Industry: Aviation & Aerospace Technology: Fused Filament Fabrication
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Roboze & the University of Campania, 3D-printed lightweight Sandwich Panels for aircraft performance

Breaking boundaries with lightweight precision: Elevate aerospace structures with 3D-printed sandwich panels.



                        

Description

Recent study in Elsevier's journal by Valerio Acanfora and University of Campania team, in collaboration with the Institute for Composite Polymers, explores weight reduction in sandwich panels using Roboze ARGO 500 3D printer. Sandwich panels, complex composite structures composed of layers of various materials, offer tailored properties such as strength, thermal insulation, and lightness. These panels typically feature an upper layer for protection against atmospheric elements, a lower layer with similar or different materials, and a crucial core accounting for most of the panel's thickness. During the optimization process, particular emphasis was placed on maximizing the energy-to-weight ratio and enhancing impact load absorption, especially in the core. Polypropylene (PP) was selected for the internal core, while carbon fiber reinforced polymers (CFRP) were chosen for the external faces. By combining these materials and adjusting infill parameters, a final structure meeting desired requirements in terms of lightness, resistance, and impact absorption was achieved. This innovative method resulted in an impressive weight reduction of up to 28%. Comparing post-impact responses at 20 J across different sandwich configurations revealed a significant decrease in total weight, dropping from 261g to 189g. The SEA parameter, indicating the ratio of energy absorbed by the panel to its mass, soared by 43.5% compared to filled layers. Thus, this approach not only slashes component weight but also enables stiffness adaptation based on applied loads, yielding superior performance with reduced overall mass.

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