Abstract
Improved robustness is seen as a key technology enabler for reducing the required thicknesses of composite structural parts; this reduction would, in turn, lead to direct savings in the structural mass. The aim of this study was to produce one reference and two nano-treated lower panel demonstrators for investigating the effect of nano-reinforcement on the damage tolerance behaviour of skin, stringers, bondline and on the electrical conductivity of CFRP. The selected technology, resulting from development and experiments undertaken within the SARISTU project, is carbon nanotube (CNT)-integrated prepreg material M21/34%/UD194/T800S, which is treated by University of Patras. The studies on damage tolerance improvement performed within the scope of Application Scenario 09 were used as input during determination of the manufacturing parameters for the selected co-bonding process. The demonstrators are curved panels whose overall dimensions are 2868 mm length and 1120 mm width, and that are stiffened with four omega stringers and four mechanically fastened frame pieces. This chapter reviews the design and fabrication of manufacturing tooling, the design and production of the various individual components, integration of the DiAMon Plus™ online cure monitoring system by INASCO and the assembly at TAI of the stiffened skin with the composite mousehole frames designed and manufactured by SABCA.
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Abbreviations
- ABS:
-
Airbus standard
- AIMS:
-
Airbus material specification
- AIPI:
-
Airbus process instruction
- AS:
-
Application scenario
- CAD:
-
Computer aided design
- CFRP:
-
Carbon fibre reinforced plastics
- CNT:
-
Carbon nanotube
- CPD:
-
Composite part design
- DEA:
-
Dielectric analysis
- EOP:
-
Edge of the part
- ESN:
-
Electrical structural network
- GSM:
-
Grams per square metre
- INASCO:
-
Integrated aerospace sciences corporation
- IPS:
-
Individual product specification
- IS:
-
Integration scenario
- LATO:
-
Lay-up tool
- RTM:
-
Resin transfer moulding
- SARISTU:
-
Smart intelligent aircraft structures
- SABCA:
-
Société Anonyme Belge de Constructions Aéronautiques
- TAI:
-
Tukish aerospace indusries
- UD:
-
Unidirectional
- UNIPA:
-
University of patras
- WP:
-
Work package
- C Te :
-
Coefficient of thermal expansion
- ∆L :
-
Change in length
- L 0 :
-
Initial length
- T :
-
Temperature, °C
- T 0 :
-
Initial temperature, °C
- T g :
-
Glass transition temperature
References
Dresselhaus M (2001) Relation of carbon nanotubes to other carbon materials. Springer, Berlin, pp 11–28
Ersarac FN (2012) Preparation and characterization of shape memory polymer based composite materials for aerospace applications. Middle East Technical University, Ankara
Vavouliotis A et al (2015) Multi-scale reinforced pre-pregs for the improvement of damage tolerance and electrical properties of aeronautical structures. University of Patras, Moscow, 19–21 May 2015
Ruetters M (2015) Influence of CNT-doping on mechanical behaviour of adhesive joints in aerospace applications. Fraunhofer –Gessellschaft Zur Foerderung Der Angewandten Forschung E.V., Moscow, 19–21 May 2015
ASM, Properties and selection: nonferrous alloys and special-purpose materials, vol 2. ASM HANDBOOK, p 222
Acknowledgments
The research leading to these results has received funding from the European Union’s Seventh Framework Programme for research, technological development and demonstration under grant agreement no 284562.
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© 2016 Springer International Publishing Switzerland
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Sasal, F.N. et al. (2016). Manufacturing of Nano-treated Lower Panel Demonstrators for Aircraft Fuselage. In: Wölcken, P., Papadopoulos, M. (eds) Smart Intelligent Aircraft Structures (SARISTU). Springer, Cham. https://doi.org/10.1007/978-3-319-22413-8_55
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DOI: https://doi.org/10.1007/978-3-319-22413-8_55
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Online ISBN: 978-3-319-22413-8
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