FN Archimer Export Format
PT J
TI Material and structural testing to improve composite tidal turbine blade reliability
BT 
AF Davies, Peter
   Dumergue, Nicolas
   Arhant, Mael
   Nicolas, Erwann
   Paboeuf, Stephane
   Mayorga, Pedro
AS 1:1;2:1;3:1;4:2;5:3;6:4;
FF 1:PDG-REM-RDT-LCSM;2:PDG-REM-RDT-LCSM;3:PDG-REM-RDT-LCSM;4:;5:;6:;
C1 IFREMER, Centre Bretagne 29280 Plouzané, France
   Sabella, 7, rue Félix Le Dantec, 29000 Quimper, France
   Bureau Veritas Marine & Offshore, 4 rue Duguay, Trouin 44800 Saint Herblain, France
   EnerOcean SL, Bulevar Louis Pasteur 5, Of.321, 29010 Málaga, Spain
C2 IFREMER, FRANCE
   SABELLA, FRANCE
   BUREAU VERITAS, FRANCE
   ENEROCEAN SL, SPAIN
SI BREST
SE PDG-REM-RDT-LCSM
TC 0
UR https://archimer.ifremer.fr/doc/00783/89471/94965.pdf
LA English
DT Article
DE ;Composite blade;Durability;Full scale test.
AB Most tidal turbine blades are currently made from glass or carbon fibre reinforced epoxy composites. These represent a significant part of the turbine cost, but few data are available either to validate current safety factors or to propose alternative more environmentally-friendly materials. This study, performed within the EU H2020 RealTide project, aimed to provide these data. First, a detailed investigation of the static and fatigue behavior was performed at the coupon scale, including not only those materials currently used, but also alternative recyclable thermoplastic matrix composites and natural fibre reinforced materials. Tests were performed before and after seawater saturation, in order to quantify the change in design properties with water uptake. Then a first full scale 5 meter long composite blade was designed and tested to failure. A specific test frame was built, allowing loads up to 75 tons to be applied and simulating the applied moments corresponding to service loads. Static and cyclic loads were applied and extensive instrumentation was used to detect changes in behavior, inluding optical fibres implanted during manufacture, acoustic emission recording, and specific instrumentation developed within the project. The results have enabled numerical simulations to be verified, and this has provided confidence in the modelling tools. These were then employed in order to propose an improved design of a lower cost blade. 
PY 2022
PD JUL
SO International Marine Energy Journal
SN 2631-5548
PU European Wave and Tidal Energy Conference
VL 5
IS 1
BP 57
EP 65
DI 10.36688/imej.5.57-65
ID 89471
ER

EF