JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 33

aero-engines

Development of a composite fan system

By
HIDEO MORITA, DOCTOR OF ENGINEERING,
DEPUTY DIVISION DIRECTOR,
TSUTOMU MURAKAMI, MANAGER, ENGINEERING DPT,
KATSUYOSHI MORIYA, MANAGER, ENGINEERING DPT.
CIVIL AERO-ENGINE DIVISION, AERO-ENGINE & SPACE OPERATION,
IHI CORPORATION

l

Outline of research
and development
When using a composite material for

the structural parts of an aircraft fan, the
greatest challenge is to obtain sufficient
impact resistance. Composites generally
have a low impact resistance; however,
since a fan blade or SGV is expected to
encounter bird strikes during flight, the
material used for these parts is required
to have an impact strength high enough
to maintain the soundness of the structural parts even after a bird strike.
Meanwhile, a
fan case requires
containment
capability such
that even if a fan
blade breaks off
(fan blade off,
FBO), it prevents
the fan blade
from breaking
through the fan
case. Therefore,
the material used
for the fan case
is required to
have high energy
absorption
performance
and non-penetrability against
high-velocity

impacts. Such characteristics are similar
to bullet-proofing. This R&D work was
conducted on the basis of a building
block approach. Figure 2 illustrates the
building block approach for the fan
case.
For the coupon test, a high-speed
impact test was conducted on a flat plate
to select a material. For the sub-component test, a high-velocity impact test

Fig. 1: Composite fan parts (Photo credit: Pratt & Whitney)

No106 July 2016 / jec

composites magazine

FEATURE AERONAUTICS

n recent years, there has been a
growing demand for higher efficiency
in aircraft engines, and new engines
were designed to offer a higher bypass
ratio, which makes the diameter of engine fans larger than their conventional
counterparts. This further increases
the weight of fan parts, which intrinsically accounts for a large proportion
of engine weight, and therefore there
is a high demand for lighter fans. IHI
Corporation has been researching and
developing a composite fan system since
2007. The purpose of this R&D project
is to apply composite materials to fan
cases, structural guide vanes (SGV),
and fan blades - which are typical structural parts that increase in size along
with a higher bypass ratio - and thereby
to achieve a reduction in weight. Figure
1 illustrates the composite fan parts.
This paper describes the development
of the fan case and SGV, which were
adopted for the PW1100G-JM engine
mounted on the Airbus A320neo.

The composite fan system R&D project was launched by IHI Corporation to develop composite structural parts for the fans used in
next-generation commercial aero-engines. The technology developed
for the composite fan case and structural guide vane has now been
completed and demonstrated. These two parts were applied to the
PWl100G-JM, which powers the Airbus A320neo. This paper outlines
the development of the composite fan case and structural guide vane.

33



Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #106 - July 2016

Cover
Edito
Point of view: Europe
Contents
COMPANY & BUSINESS
Development
Agenda of Events
APPLICATIONS
Thermoplastics
Automotive
MARKET
Aircraft engine
FEATURE AERONAUTICS
Aerostructures
Characterisation
Thermoplastics
Aero-engines
Process
CFRP
Semi-product
RESEARCH & DEVELOPMENT
Review
Core material
TECHNOLOGY & INNOVATIONS
NDT
Marine
Index
In the world
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - Ad1
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - Cover
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 2
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - Edito
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - Point of view: Europe
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 5
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - Contents
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 7
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - COMPANY & BUSINESS
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 9
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - Development
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 11
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - Agenda of Events
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 13
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - AdHEC
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - AdCro
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - Thermoplastics
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 15
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 16
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - Automotive
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - Aircraft engine
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 19
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 20
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 21
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 22
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - Aerostructures
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 24
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 25
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - Characterisation
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 27
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 28
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 29
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 30
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - Thermoplastics
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 32
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - Aero-engines
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 34
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 35
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 36
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - Process
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 38
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 39
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - CFRP
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 41
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 42
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - Semi-product
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 44
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 45
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - Review
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 47
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 48
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 49
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - Core material
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 51
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 52
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - NDT
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 54
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - Marine
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 56
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - Index
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - In the world
JEC COMPOSITES MAGAZINE - Issue #106 - July 2016 - 59
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