JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 28

advancement

Composite materials will continue to define the future of aerospace
Advanced materials have been and will continue to be critical enabling technologies for aerospace innovation. In the early days, wood and fabric were used to create primary structures. This was followed by aluminium, and then high-strength durable aluminium optimized for specific applications. Strong, lightweight polymer-reinforced graphite is the material of choice today for a majority of the industry’s new airframes.

By

Gerould Young Director Materials and Fabrication Technology Boeing Research & Technology

energy, sporting goods and automotive applications.

R

esearch focused on composites technology in areas such as properties, multi-functionality, manufacturing processes, multi-disciplinary optimization design tools, and faster development and certification processes offers tremendous potential for improved performance and cost benefits in future aerospace products.

Wide use of composites in aerospace
Performance gains from weight reductions have helped drive the increased use of composite material systems in aerospace products. The percentage of composite structural weight in commercial airplanes has been climbing steadily. For example, while composite materials accounted for approximately 10% of the structural weight of the Boeing 777 and Airbus A330, this percentage has grown to approximately 50% of the Boeing 787 Dreamliner and a projected 50% of the Airbus A350. The growth in the use of composites in aerospace is similar to the tremendous growth that has occurred in

The use of composites in aerospace has evolved from early use in the 1970s for small secondary structural applications on military platforms to the extensive use today in commercial systems for primary structures such as wings and fuselages. The material systems have grown from low-modulus fibres and un-toughened matrices to high-modulus fibres and second-generation-toughened matrices. During this same time, our manufacturing techniques have moved from hand layup of simple laminated parts to automated fabrication of integrated complex structures. Structural composite materials were required to be cured under pressure in autoclaves. But today’s material technologies allow for cure under just vacuum pressure while still achieving equivalent properties.

strength, stiffness and inter-laminar shear along with materials optimized for specific applications or airframe locations, as well as materials with multi-functional property sets. - Affordable, automated and scalable manufacturing processes with improved quality and robustness for more highly integrated structures. - Expanded design space achieved with design optimization tools and three-dimensional failure analysis. - Faster material development and certification cycles.

Materials property improvements
Aerospace R&D is focused on the obvious needs for stronger composite materials and for composite materials that perform well at extremely high temperatures. Improvements in these areas will directly affect where and how much these materials will be used. For example, inter-laminar shear improvement can be correlated with toughness of a composite material system. This directly affects the ability of the material to resist impact damage resulting in delamination or reductions in damage propagation. Composite material systems will be optimized for specific properties which are ideal for

Future challenges for composites
While the industry has evolved considerably in the use of composite systems in aerospace platforms, there are four broad areas that pose challenges to the continued growth of composite applications: - Material property improvements such as

28 jec composites magazine / No72 April - May 2012



JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012

Cover
Edito
Point of view: Toray believes in Europe
Contents
Agenda of Events
COMPANY & BUSINESS
- In Brief
- Wind energy
APPLICATIONS
- Medical
MARKET
- Carbon survey
- Human ressources
FEATURE AEROSPACE
- Advancement
- Nano
- Thermoplastics
- Autoclave
- Fibre placement
- Lamination
- CNC
- Holding
- Manufacturing
- Sustainability
RESEARCH & DEVELOPMENT
- SMPs
- Damage
TECHNOLOGY & INNOVATIONS
- Coating
- Filament winding
- Natural fibre
Special JEC Asia
- JEC Asia 2012, the place to be
- Aerospace
- Carbon
- Indonesia
Index
In the world
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - Cover
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 2
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - Edito
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - Point of view: Toray believes in Europe
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 5
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - Contents
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 7
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 8
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 9
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - Agenda of Events
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 11
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - In Brief
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 13
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - Wind energy
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - Medical
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 16
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 17
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 18
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 19
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 20
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - Carbon survey
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 22
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 23
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 24
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - Human ressources
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 26
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 27
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - Advancement
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 29
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 30
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - Nano
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 32
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 33
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - Thermoplastics
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 35
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 36
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 37
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - Autoclave
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 39
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 40
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - Fibre placement
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 42
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 43
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - Lamination
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 45
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 46
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - CNC
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - Holding
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - Manufacturing
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 50
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 51
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - Sustainability
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 53
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 54
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 55
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - SMPs
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 57
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 58
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - Damage
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 60
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 61
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - Coating
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 63
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 64
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - Filament winding
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - Natural fibre
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 67
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - Index
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - In the world
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - JEC Asia 2012, the place to be
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 71
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - Aerospace
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 73
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 74
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 75
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - Carbon
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 77
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 78
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - - Indonesia
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 80
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 81
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 82
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 83
JEC COMPOSITES MAGAZINE - Issue #72 - April/May 2012 - 84
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