JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 152

TECHNOLOGY FMEL

Fig. 1: Finished steel and FMEL specimens (left); cutting profile of an FMEL specimen (right)

Fig. 2: Layer setup and preformed laminates of the FMEL specimen

by HACOTECH GmbH was used, which consisted of a 0°/90°
carbon fibre weave impregnated with an epoxy resin matrix. The
steel sheets were S235 steel in 1 mm thickness. Two types of elastomers were used in the laminate in order to balance the damping performance and laminate adhesion: HVV9632/59 (less
damping but better adhesion) and SUT9609/24 (better damping but less adhesion) from KRAIBURG GmbH & Co. KG. The
parameters of the compression moulding process were adapted
from previous research [3]. The process lasted 60 minutes with
a resulting pressure of 23 bar on the laminate surface and a tool
temperature of 130°C. The cured laminates were then water cut.
After the specimens were manufactured, the dynamic behaviour
and bending stiffness of both types of specimens were investigated and compared. An experimental modal analysis, or more specifically, impact test, was conducted to investigate the dynamic
behaviour of both types of specimens including resonance frequencies, vibration patterns (Eigenforms) and damping ratios.
An FEM model was used as an aid to identify the Eigenforms.
The bending test was conducted by fixing one end of the specimen onto a steel structure with screws and applying a load on
the other end, thus imitating the loading conditions of a real machine spindle housing in operation. Strain gauges were applied
to the specimens to measure deformation. A concept for joining
the FMEL material to a steel structure was also investigated and
tested during the bending experiment. A pair of steel adapters
with a short jacket structure was designed (Figure 3). The adapters were connected to the FMEL specimen with epoxy adhesive,
and joined with the steel structure using M10 screws on the other

152

Fig. 3: CAD illustration of the adapter joining system

side. A Scotch Weld DP490 epoxy adhesive from 3M was used in
this research.

Results
The finished FMEL specimens offered good surface quality and
laminate bonding, with no pores at the specimen cut edges and
only minor delaminations near the corners. The specimen thickness, however, was the main issue of the production process. The
thickness along the pressing direction was up to 11% greater than
designed and varied slightly with different workpieces and different positions.
The modal analysis identified at least ten resonance frequencies
of the steel specimens and their Eigenforms. The three most critical resonance frequencies with the highest amplitudes appeared
at 3327 Hz, 6649 Hz and 7500 Hz. The first Eigenform at 3327
Hz was an expansion/compression alternating in the X and Y
directions (Figure 4). The fifth Eigenform at 6649 Hz was featured with expansion/compression at two ends while opposite in
the middle, which forms a shape of "chips bag" at a certain time
point. The ninth at 7500 Hz was a bending movement in the Y-Z
plane. With the FMEL specimens, however, only the first reso-

jec composites magazine / N°133 March - April 2020



JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020

Cover
Edito
“For the past 130 years, every aspect of tire performance has been improved, except for one”
Contents
NEWS
In brief
Agenda
Aerospace
BUSINESS
Strategy - Selling your business, Part 1: maximizing value on both sides of the deal
Trends - Automotive: what will be tomorrow’s reality?
Boatbuilding - Maritime and shipbuilding sector: a niche market with growth potential
China - China’s glass fibre industry is entering a new cycle
MANUFACTURING
Fabrics - GaplessWeave process for higher-quality carbon fibre fabrics
Electric vehicle - The potential of epoxy SMC in electro-mobility battery systems
Simulation - New updates for the Composite Materials Module’s users
Aerospace - lnfused primary structures: the gateway to tomorrow’s air mobility
Aircraft interiors - New core filler for aircraft interiors: reduced material, weight and manufacturing costs
Sustainability - Eco Impact Calculator, a Life Cycle Assessment tool for the composites industry
PREVIEW JEC WORLD 2020
- EDUCATION & KNOWLEDGE
- MARKET OVERVIEW / Fact & figures
- AT THE FOREFRONT IN JEC WORLD 2020
- VIEW FROM THE TOP
- INNOVATION
- SUSTAINABILITY
- END-USE MARKETS
- PROCESS & AUTOMATION
- INTERNATIONAL
SOLUTIONS
Book - Composites in infrastructure
Construction - Composites joining science and religion
Urban equipment - Composite infrastructure products: a new alternative for the construction industry
Aeronautics - To new horizons, with composites
Aeronautics - Thermoplastic composite bracket for aircraft engines
Off shore wind energy - Taming the offshore winds
Biocomposites - Where are natural fibre composites heading?
Natural fibres - The challenges of building large structures from flax fibre composite
TECHNOLOGY
Resin - Properties and composite applications of nanocalcitemodified epoxies
Inside the lab - Architected Material and Structures (AMS), a team from Navier Laboratory (Ecole des Ponts ParisTech/IFSTTAR/CNRS)
FMEL - Fibre-metal elastomer laminates – Lightweight components with superior damping characteristics
Index
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JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - CF
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - CB
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Cover
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 2
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Edito
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - “For the past 130 years, every aspect of tire performance has been improved, except for one”
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 5
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Contents
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 7
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - In brief
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 9
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 10
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Agenda
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Aerospace
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 13
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Strategy - Selling your business, Part 1: maximizing value on both sides of the deal
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 15
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 16
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Trends - Automotive: what will be tomorrow’s reality?
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 18
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 19
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Boatbuilding - Maritime and shipbuilding sector: a niche market with growth potential
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 21
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - China - China’s glass fibre industry is entering a new cycle
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 23
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 24
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Fabrics - GaplessWeave process for higher-quality carbon fibre fabrics
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 26
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 27
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 28
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Electric vehicle - The potential of epoxy SMC in electro-mobility battery systems
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 30
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 31
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Simulation - New updates for the Composite Materials Module’s users
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 33
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Aerospace - lnfused primary structures: the gateway to tomorrow’s air mobility
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 35
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 36
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Aircraft interiors - New core filler for aircraft interiors: reduced material, weight and manufacturing costs
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 38
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Sustainability - Eco Impact Calculator, a Life Cycle Assessment tool for the composites industry
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 40
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 41
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 42
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 43
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 44
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - - EDUCATION & KNOWLEDGE
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 46
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - - MARKET OVERVIEW / Fact & figures
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - - AT THE FOREFRONT IN JEC WORLD 2020
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 49
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 50
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 51
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - - VIEW FROM THE TOP
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 53
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 54
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 55
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - - INNOVATION
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 57
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 58
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 59
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 60
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 61
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 62
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 63
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 64
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 65
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 66
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 67
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 68
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 69
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - - SUSTAINABILITY
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 71
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - - END-USE MARKETS
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 73
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 74
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 75
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 76
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 77
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 78
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 79
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - - PROCESS & AUTOMATION
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 81
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 82
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 83
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 84
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 85
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 86
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JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 89
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 90
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - - INTERNATIONAL
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 92
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 93
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 94
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JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 113
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 114
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Book - Composites in infrastructure
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 116
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 117
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Construction - Composites joining science and religion
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 119
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 120
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 121
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Urban equipment - Composite infrastructure products: a new alternative for the construction industry
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 123
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Aeronautics - To new horizons, with composites
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 125
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 126
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Aeronautics - Thermoplastic composite bracket for aircraft engines
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 128
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Off shore wind energy - Taming the offshore winds
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 130
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 131
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 132
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Biocomposites - Where are natural fibre composites heading?
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 134
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 135
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Natural fibres - The challenges of building large structures from flax fibre composite
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 137
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 138
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Resin - Properties and composite applications of nanocalcitemodified epoxies
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 140
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 141
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 142
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JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 146
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 147
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Inside the lab - Architected Material and Structures (AMS), a team from Navier Laboratory (Ecole des Ponts ParisTech/IFSTTAR/CNRS)
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 149
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 150
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - FMEL - Fibre-metal elastomer laminates – Lightweight components with superior damping characteristics
JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - 152
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JEC COMPOSITES MAGAZINE - Issue #133 - March/April 2020 - Advertisers
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