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O. Boegler, A. Roth, L. Lorenz, A. Sizmann
Airborne applications are traditionally challenging working environments for structural materials, imposing tough and non-negotiable constraints with respect to stiffness and structural integrity, while the construction must still be as lightweight as possible. This has led to the increased use of fiber composites like carbon- or glass-fiber reinforced plastics (CFRP or GFRP) in aircraft, which offer the required structural properties at the same time as a considerable weight advantage over conventional materials (e.g. aluminum) in certain applications. With CFRP or GFRP being predominantly based on petrochemical products, recent efforts to make aviation more sustainable by reducing its dependence on non-renewable resources should be extended to include the identification of alternative production pathways and new materials, yet without compromising their lightweight and high performance properties and characteristics. In this paper, the groundwork for a suitable assessment framework and criteria for the selection of reliable and sustainable construction materials is laid. We discuss the example of renewable fibers and propose the notion of the so-called "Loom-In Capability (LIC)": Analogously to the "Drop-In Capability" used in the assessment of alternative fuels, the LIC should be understood as a parameter to quantify the compatibility of new materials with current processes of aircraft design and construction.
Deutscher Luft- und Raumfahrtkongress 2013, Stuttgart
Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn, 2014
21,0 x 29,7 cm, 9 Seiten
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