Evaluation of the durability of composite tidal turbine blades

Type Article
Date 2013-02
Language English
Author(s) Davies PeterORCID1, Germain GregoryORCID2, Gaurier BenoitORCID2, Boisseau Amelie1, Perreux Dominique3
Affiliation(s) 1 : IFREMER, Ctr Brest, Mat & Struct Grp, F-29280 Plouzane, France.
2 : IFREMER, Hydrodynam & MetOcean Serv, F-62321 Boulogne, France.
3 : MaHyTec, F-39100 Dole, France.
Meeting EWTEC Congress, 5-9 sep 2011,Southampton
Source Philosophical Transactions Of The Royal Society A-mathematical Physical And Engineering Sciences (1364-503X) (Royal Soc), 2013-02 , Vol. 371 , N. 1985
DOI 10.1098/rsta.2012.0187
WOS© Times Cited 14
Keyword(s) composite, fatigue, ageing, tidal turbine, flume tank, finite-element model
Abstract The long term reliability of tidal turbines is critical if these structures are to be cost-effective. Optimised design requires a combination of material durability models and structural analyses. Composites are a natural choice for turbine blades but there are few data available to predict material behaviour under coupled environmental and cycling loading. This paper addresses this problem, by introducing a multi-level framework for turbine blade qualification. At the material scale static and cyclic tests have been performed, both in air and in seawater. The influence of ageing in seawater on fatigue performance is then quantified and much lower fatigue lives are measured after ageing. At a higher level flume tank tests have been performed on three-blade tidal turbines. Strain gauging of blades has provided data to compare with numerical models.
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Davies Peter, Germain Gregory, Gaurier Benoit, Boisseau Amelie, Perreux Dominique (2013). Evaluation of the durability of composite tidal turbine blades. Philosophical Transactions Of The Royal Society A-mathematical Physical And Engineering Sciences, 371(1985). Publisher's official version : https://doi.org/10.1098/rsta.2012.0187 , Open Access version : https://archimer.ifremer.fr/doc/00079/19053/