Evaluation of the durability of composite tidal turbine blades by Peter Davies, Grégory Germain, Benoît Gaurier, Amélie Boisseau, and Dominique Perreux.

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Evaluation of the durability of composite tidal turbine blades by Peter Davies, Grégory Germain, Benoît Gaurier, Amélie Boisseau, and Dominique Perreux Philosophical Transactions A Volume 371(1985): February 28, 2013 ©2013 by The Royal Society

Tidal turbine test pyramid. Peter Davies et al. Phil. Trans. R. Soc. A 2013;371: ©2013 by The Royal Society

Test set-up for static cyclic tests in sea water. Peter Davies et al. Phil. Trans. R. Soc. A 2013;371: ©2013 by The Royal Society

Natural sea water ageing facility. Peter Davies et al. Phil. Trans. R. Soc. A 2013;371: ©2013 by The Royal Society

Weight gains in sea water. Peter Davies et al. Phil. Trans. R. Soc. A 2013;371: ©2013 by The Royal Society

Influence of wet ageing (sea water 60°C) on quasi-static flexural behaviour of E-glass/epoxy composites. Peter Davies et al. Phil. Trans. R. Soc. A 2013;371: ©2013 by The Royal Society

Influence of wet ageing (sea water 60°C) on fatigue behaviour. Peter Davies et al. Phil. Trans. R. Soc. A 2013;371: ©2013 by The Royal Society

Static flexural stiffness of blades. Peter Davies et al. Phil. Trans. R. Soc. A 2013;371: ©2013 by The Royal Society

Model turbine with strain-gauged composite blades before flume tank immersion. Peter Davies et al. Phil. Trans. R. Soc. A 2013;371: ©2013 by The Royal Society

Flume tank, IFREMER Boulogne Centre, showing wave generator. Peter Davies et al. Phil. Trans. R. Soc. A 2013;371: ©2013 by The Royal Society

Tensile strains on polyurethane blades at 100 r.p.m. Peter Davies et al. Phil. Trans. R. Soc. A 2013;371: ©2013 by The Royal Society

Strains and drag force measured on glass mat-reinforced blade versus TSR. (a) Strains for different flow speeds. Peter Davies et al. Phil. Trans. R. Soc. A 2013;371: ©2013 by The Royal Society

(a) Drag force and (b) reduced strain evolution with time and the fast Fourier transform. Peter Davies et al. Phil. Trans. R. Soc. A 2013;371: ©2013 by The Royal Society

Construction of digital model of blade using laser scanner. Peter Davies et al. Phil. Trans. R. Soc. A 2013;371: ©2013 by The Royal Society

Numerical model. Peter Davies et al. Phil. Trans. R. Soc. A 2013;371: ©2013 by The Royal Society

Example of model result showing velocity (m s−1) and pressure (Pa) fields around turbine blade (current flow 0.1 m s−1). Peter Davies et al. Phil. Trans. R. Soc. A 2013;371: ©2013 by The Royal Society

Influence of manufacturing quality on fatigue performance. Peter Davies et al. Phil. Trans. R. Soc. A 2013;371: ©2013 by The Royal Society

Current turbine prototype, for manufacturing study and cyclic tests. Peter Davies et al. Phil. Trans. R. Soc. A 2013;371: ©2013 by The Royal Society