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Manufacturing ..............................................................................................12
Lightweighting..............................................................................................13
Joining .........................................................................................................14
Recycling .....................................................................................................14
Modelling .....................................................................................................14
Fire Safety ...................................................................................................15
New Material Concepts................................................................................ 15
Future Research Priorities for Composites in Aerospace .................................. 16
Primary Research Priority – Manufacturing Technologies .......................... 17
Primary Research Priority – Design, Analytical Tools and Simulation ........ 17
Primary Research Priority – Material Systems............................................ 17
Primary Research Priority – Joining ............................................................ 17
Secondary Research Priority – Multifunctional Structures .......................... 17
Secondary Research Priority – Recycling ................................................... 17
Future Opportunities for Composites in Aerospace............................................ 18
Centres of Excellence for Composites in Aerospace.......................................... 18
Conclusions ............................................................................................................. 19
For more information, please contact:
Jürgen Brandt
EADS Deutschland GmbH
Corporate Research Centre
81663 München
Germany
Tel: +49 89 607 229 66
Fax: +49 89 607 230 67
juergen.brandt@eads.net
www.eads.net
3
SUMMARY
Composites are, besides aluminium, the
most important materials for aerospace
applications. Due to the opportunities they
present for weight saving, their share has
reached more than 15 % of the structural
weight of civil aircraft, and more than 50% of
the structural weight of helicopters and
fighter aircraft over the last 40 years. In
addition to their high mass specific stiffness
and strength, the high potential of
composites for additional functionality is
another reason for their success. Defined
anisotropic behaviour, the possibility to
integrate sensors or actuators, high
structural damping, and superior fatigue
performance are typical advantages.
Nevertheless, there are still some
drawbacks that are preventing composites
from being used more extensively. Material
costs can be prohibitively high, processing is
time consuming and involves a lot of manual
work, and the behaviour of the
inhomogeneous and anisotropic materials is
still not fully understood.
In order to discuss the most critical issues
relating to the use of composites with
experts from other transport sectors, ten
workshops were organised within the
framework of the COMPOSIT thematic
network on “The Future Use of Composites
in Transport”. These ten workshops
addressed the issues of composite repair,
design and structural simulation,
crashworthiness, manufacturing,
lightweighting, joining, recycling, modelling,
fire safety and new material concepts. The
objective was to exchange knowledge in
order to identify solutions or define common
research directions. As an output from each
workshop, priorities for future research
activities to meet the needs of the transport
sectors were identified.
This report presents the findings of
COMPOSIT in terms of the aerospace
industry. Key recommendations for future
research priorities include:
• Cost effective, automated
manufacturing technologies, e.g. the
development and application of textile
preforming technologies in combination
with non-autoclave impregnation and
curing processes.
• Improved design methodologies and
analytical tools for simulating processing
and performance (especially non-linear
behaviour and long-term behaviour).
• Improvement of material systems
(fibres, matrix systems, binders) with
respect to cost, processing and
performance, e.g. through the
application of nanotechnologies.
• Advanced (adhesion) joining techniques
for improving performance and
simplifying processing.
Further information on COMPOSIT can be
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
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航空资料28(79)
