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Characterization of multifunctional skin-material for morphing leading-edge applications

Geier, Sebastian and Kintscher, Markus and Mahrholz, Thorsten and Wierach, Peter and Monner, Hans-Peter and Wiedemann, Martin (2013) Characterization of multifunctional skin-material for morphing leading-edge applications. In: Proc. SPIE 8688, 8688 (868818). SPIE. SPIE 2013 Smart Structures/NDE, 10-14. März 2013, San Diego, USA.

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1117/12.2009865


Former research on morphing droop-nose applications revealed great economical and social ecological advantages in terms of providing gapless surfaces for long areas of laminar flow. Furthermore a droop-nose for laminar flow applications provides a low noise exposing high-lift system at the leading-edge. Various kinematic concepts for the active deployment of such devices are already published but the major challenge is still an open issue: a skin material which meets the compromise of needed stiffness and flexibility. Moreover additional functions have to be added to keep up with standard systems. As a result of several national and European projects the DLR developed a gapless 3D smart droop-nose concept, which was successfully analyzed in a low speed wind tunnel test under relevant loads to prove the functionality and efficiency. The main structure of this concept is made of commercial available glass fiber reinforced plastics (GRFP). This paper presents elementary tests to characterize material lay-ups and their integrity by applying different loads under extreme thermal conditions using aged specimens. On the one hand the presented work is focused on the integrity of material-interfaces and on the other hand the efficiency and feasibility of embedded functions. It can be concluded that different preparations, different adhesives and used materials have their significant influence to the interface stability and mechanical property of the whole lay-up. Especially the laminate design can be optimized due to the e. g. mechanical exploitation of the added systems beyond their main function in order to reduce structural mass.

Item URL in elib:https://elib.dlr.de/89361/
Document Type:Conference or Workshop Item (Speech)
Title:Characterization of multifunctional skin-material for morphing leading-edge applications
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Wiedemann, MartinFAUNSPECIFIED
Date:10 April 2013
Journal or Publication Title:Proc. SPIE 8688
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Series Name:Active and Passive Smart Structures and Integrated Systems 2013
Keywords:Topics Skin; Interfaces ; Adhesives ; Fiber reinforced polymers ; Glasses; Smart droop-nose; Morphing structure; Morphing wing; Morphing leading-edge; Laminar natural flow; Laminar wing concept;
Event Title:SPIE 2013 Smart Structures/NDE
Event Location:San Diego, USA
Event Type:international Conference
Event Dates:10-14. März 2013
Organizer:SPIE International Society for Optics and Photonics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures & Materials (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Multifunctional Materials
Deposited By: Geier, Sebastian
Deposited On:10 Jun 2014 11:06
Last Modified:16 Jul 2021 17:36

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