1. lfremer
1
Composites for maritime applications
Peter Davies,
Marine Structures Laboratory, IFREMER Centre de Brest
ZEETEX, Oostende 9th July 2013, Session Naval & Nautisme

2. lfremer
2
Presentation ZEETEX
Introduction
Surface vessels
Underwater applications
The future

3. lfremer
3
IFREMER
French Ocean Research Institute
EPIC (Public Institute with Industrial &
Commercial vocation)
1400 employees
Materials group in Brest

4. lfremer
4
IFREMER: Areas of application

5. lfremer
Current project areas
5
Buoyancy & insulation materials
Elastomers
Synthetic fibres and ropes
Adhesives
Marine composites

6. lfremer
6
1992 2012

7. lfremer
7
Presentation
Introduction
Surface vessels
Underwater applications
The future

8. lfremer
8
BRITE-COMAST Composite Materials in
Marine Structures and Components
10 Partners:
CETENA, Fincantieri, MIKI, Vetroresina, RINA, (IT)
BV, Ifremer, CETIM, ECN (F)
IST Lisbonne (P)
Programme: 3 parts
- Superstructure panels
- Composite pipework
- Deck and hull applications
Objectif:
Design and testing of composite structures

9. lfremer
9
Tests on structures to simulate marine loads
Pressure loading of panels (Ifremer)
P r e s s u r e
Pression repartie

10. lfremer
10
Tests on structures
Pressure loading to simulate water loads (Ifremer)

11. lfremer
11
Structural tests
Shear test on sandwich (Ifremer)

12. lfremer
12
Modelling of structural tests
z
x
γ0
5
10
15
20
25
30
0 200 400 600 800 1000 1200 1400 1600 1800
x-co-ordinate, mm
Displacement,mm
test 1
adina lin
nisa
ansys
cosmos 5
abaqus
cosmos 4
cosmos 9 (NL)
Follow-up:
DOGMA
European
network

13. lfremer
13
National Naval Composites project
Co-ordination: Bureau Veritas
Partners: 14 boatyards, research institutes…
Large project aimed at improving knowledge of
composites in the pleasure boat industry

14. lfremer
14
EUCLID RTP3.8 (European Cooperation for Long Term in Defence)
Naval Applications Technology: Composite Structures
Programme: 5 sub-projects
Materials & Structures, NDE, Repair, Fire, E/M
Objectif: Establish the technical basis for wider use of
composites in naval applications
Partners:
DNV/DCN/TNO/CETENA/DERA
Budget: 12,5 M€, 5 years

15. lfremer
15
Partners:
DNV/DCN/TNO/CETENA/DERA, Riso
Programme:
Assembly, Fire, E/M
Budget 9,2 M€
Objectif: Composites for superstructures

16. lfremer
16
EUCLID: Assemblies
Some data published

17. lfremer
17
Project CRITT Rochefort
ENSMA/Univ Nantes/Ifremer
Motorboat assembly
Drop tests, Ifremer wave tank
Pleasure boat projects

18. lfremer
18
Racing yacht studies
1986 F40, America Cup, PRB, Sill, Groupama…..

19. lfremer
19
Collaboration Trimaran Groupama
Slamming impact studies

20. lfremer
Project Finot « Albatross »
20
Designed by J-M Finot
Prepreg from Rhodia
Glass/PA66

21. lfremer
Step change in manufacturing
21
Closed mould, high temperature

22. lfremer
22
Presentation
Introduction
Surface vessels
Underwater applications
The future

23. lfremer
23
Various projects on composite
cylinders for underwater applications
Oceanography, Offshore, MRE…
Brite-DEVILS
MAST-MADS
MAST-AUV
MAST Composite housings
…

24. lfremer
24

25. lfremer
25
Thermoplastic composites
1 mm
Glass/PEI

26. lfremer
26
Implosion testing
C/PEEKC/Epoxy
Similar implosion resistance to C/Epoxy

27. lfremer
27
C/PEEK C/Epoxy
Impact behaviour
C/PEEK C/Epoxy
Good fracture toughness

28. lfremer
28
Residual implosion pressure after impact
0
20
40
60
80
100
0 5 10 15 20 25
Impact energy, J
%undamagedvalue C/PEEK
C/Epoxy
a b
C/PEEK C/Epoxy

29. lfremer
29
Presentation
Introduction
Surface vessels
Underwater applications
The future

30. lfremer
30
The future
Biocomposites
NAVECOMAT project
Flax/PLA

31. lfremer
31
Gwalaz
Tricat,
7m flax/polyester
(Kairos)

32. lfremer
32
Low temperature thermoplastic acrylic
infusion resins (Arkema, JEC 2013)

33. lfremer
33
Thank you for your attention
For more information:
http://archimer.ifremer.fr
/