U. Kling, D. Empl, O. Boegler, A.T. Isikveren

Ambitious targets for the reduction of CO2, the pursuit of independence from fossil resources and the demand for cost control has driven efforts to search for raw materials from renewable resources. In general, polymer composites reinforced with endless fibers offer good mechanical properties and their low densities, which make them ideal candidates for lightweight design. Advanced fiber composites made from regenerative resources would therefore contribute to lower fuel-burn in operation because of reduced weight and additionally have the potential to decrease the overall carbon footprint of the aircraft. However, alternative materials lack in mechanical properties, and usually do not meet reliability requirements. In a previous investigation a method including non-linear deformation and critical sizing check for maximum maneuver, gust, roll and buckling loads for the structural design of a defined conventional wing was used for wing mass calculations. This introductory study showed that some composites with natural fibers could represent alternative materials for aircraft design. In the present work, a future wing design for a single-aisle aircraft consisting of an in-plane cantilevered slender wing made of selected sustainable materials is assessed regarding wing weight and other critical aircraft related aspects. In a first aircraft level assessment, using the Airbus A320neo as reference, one of the selected sustainable materials leads to an outcome comparable to carbon fiber reinforced polymer with epoxy matrix in terms of aircraft performance increase.

Deutscher Luft- und Raumfahrtkongress 2015, Rostock

Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn, 2015

Conference Paper

englisch

21,0 x 29,7 cm, 8 Seiten

urn:nbn:de:101:1-201512043344

aircraft structures, renewable materials

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04.12.2015