Innovation in Aircraft Cabin Interior Panels Part I: Technical Assessment on Replacing the Honeycomb with Structural Foams and Evaluation of Optimal Curing of Prepreg Fiberglass
| Autor: | Cecilia Zarate Pérez, Saúl Piedra, Annika Dollinger, Victoria Rentería-Rodríguez, Perla Itzel Alcántara Llanas, Mauricio Torres-Arellano, Edgar Franco-Urquiza |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Polymers and Plastics Technical assessment aircraft cabin interior panels optimal curing of prepregs Organic chemistry Compression molding Rigidity (psychology) Core (manufacturing) General Chemistry foams chemistry.chemical_compound Honeycomb structure QD241-441 chemistry Honeycomb Technical Note non-structural composite panels Composite material Curing (chemistry) Polyurethane |
| Zdroj: | Polymers Polymers, Vol 13, Iss 3207, p 3207 (2021) |
| ISSN: | 2073-4360 |
| Popis: | Sandwich composites are widely used in the manufacture of aircraft cabin interior panels for commercial aircraft, mainly due to the light weight of the composites and their high strength-to-weight ratio. Panels are used for floors, ceilings, kitchen walls, cabinets, seats, and cabin dividers. The honeycomb core of the panels is a very light structure that provides high rigidity, which is considerably increased with fiberglass face sheets. The panels are manufactured using the compression molding process, where the honeycomb core is crushed up to the desired thickness. The crushed core breaks fiberglass face sheets and causes other damage, so the panel must be reworked. Some damage is associated with excessive build-up of resin in localized areas, incomplete curing of the pre-impregnated fiberglass during the manufacturing process, and excessive temperature or residence time during the compression molding. This work evaluates the feasibility of using rigid polyurethane foams as a substitute for the honeycomb core. The thermal and viscoelastic behavior of the cured prepreg fiberglass under different manufacturing conditions is studied. The first part of this work presents the influence of the manufacturing parameters and the feasibility of using rigid foams in manufacturing flat panels oriented to non-structural applications. The conclusion of the article describes the focus of future research. |
| Databáze: | OpenAIRE |
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