JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 38
LFT
Discontinuous LFT composites
for structural aerospace applications
By
Much progress has been made in replacing metallic structures with composites in new aircraft, with the Airbus A350
and Boeing 787 as two commercial production examples
demonstrating over 50% composite content.
Vincent Labatut, Head of project,
Stelia Aerospace
James Myers, Dr Composite Applications,
Greene Tweed
Tim Greene, Manufacturing engineer,
Philippe Gail, Head of project,
Latecoere
L
arge structural aerospace components are now commonly designed
with composites due to these materials' weight reduction, design freedom,
and service life benefits. However, a
capability gap remains for cost-effective
metal replacement of 3-dimensional
complex-shape parts such as structural
brackets, fittings, clips, or other components where injection moulding lacks
sufficient performance and the use of
traditional continuous fibre composite
materials is impractical (or impossible)
due to complex component geometries.
As a result, even the new composite-intensive aircraft still contain a substantial
number of machined metallic components.
Positioned between injection-moulded
components (with high complexity
capability but limited performance)
and traditional unidirectional tape or
fabric continuous fibre composites (with
high performance capability but limited
complexity), discontinuous long fibre
(DLF) composite materials are targeted
to address this metal replacement capability gap for semi-structural and structural
complex parts (see figure 1).
The majority of DLF production applications in aerospace to date have focused
on lightly loaded or non-structural
components. Recently, Greene Tweed
has been a dynamic subcontractor with
Stelia Aerospace (formerly Aerolia) and
Latecoere - two major aerostructure suppliers to Airbus - for collaboration in an
extensive development project aimed at
demonstrating carbon/PEEK DLF ther-
Fig. 1: The "metal replacement gap" for DLF
38 jec composites magazine / No96 April 2015
moplastic composites for primary structure applications. The project was led by
Stelia Aerospace and performed under
the R&D umbrella of CORAC (COuncil
for Civil Aeronautics Research), which
supports research and development
efforts in the aviation sector focused on
preservation of the environment and
sustainable development. Goals included
demonstration of DLF design, predictive
analysis, part manufacturing, and com-
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015
Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #96 - April 2015
Cover
Edito
Point of view : composites integration
Contents
COMPANY & BUSINESS
China
In brief
JEC Americas
Agenda of Events
APPLICATIONS
Catamaran
RIB
Trimaran
MARKET
Carbon fibre
FEATURE AERONAUTICS
Simulation
Cost-effectiveness
Low cost manufacturing
Thin-ply
High temperature
LFT
Thermoplastics
Laser projection
Release agent
Manufacturing
RESEARCH & DEVELOPMENT
Health Monitoring
Health monitoring techique for large composite structures
TECHNOLOGY & INNOVATIONS
IOT
Braiding
Resin
Vacuum infusion
Machining center
PBT
Index
In the world
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Cover
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 2
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Edito
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Point of view : composites integration
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 5
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Contents
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 7
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - China
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - In brief
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - JEC Americas
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 11
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 12
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 13
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Agenda of Events
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 15
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Catamaran
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 17
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - RIB
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Trimaran
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 20
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Carbon fibre
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 22
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 23
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 24
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 25
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Simulation
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 27
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Cost-effectiveness
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 29
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Low cost manufacturing
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 31
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 32
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Thin-ply
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 34
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 35
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - High temperature
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 37
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - LFT
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 39
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 40
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Thermoplastics
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 42
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 43
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 44
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Laser projection
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 46
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Release agent
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Manufacturing
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 49
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 50
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 51
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Health Monitoring
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 53
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 54
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 55
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Health monitoring techique for large composite structures
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 57
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 58
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 59
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - IOT
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 61
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Braiding
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 63
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 64
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Resin
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 66
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Vacuum infusion
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 68
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Machining center
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 70
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 71
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - PBT
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - Index
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - In the world
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 75
JEC COMPOSITES MAGAZINE - Issue #96 - April 2015 - 76
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