Material and structural testing to improve composite tidal turbine blade reliability
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 s...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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European Wave and Tidal Energy Conference
2022-06-01
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| Series: | International Marine Energy Journal |
| Subjects: | |
| Online Access: | http://marineenergyjournal.org/imej/article/view/106 |
| _version_ | 1818217389574062080 |
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| author | Peter Davies Nicolas Dumergue Mael Arhant Erwann Nicolas Stephane Paboeuf Pedro Mayorga |
| author_facet | Peter Davies Nicolas Dumergue Mael Arhant Erwann Nicolas Stephane Paboeuf Pedro Mayorga |
| author_sort | Peter Davies |
| collection | DOAJ |
| description |
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.
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| first_indexed | 2024-12-12T07:07:06Z |
| format | Article |
| id | doaj.art-a855a86943314f71a4d156450781eeba |
| institution | Directory Open Access Journal |
| issn | 2631-5548 |
| language | English |
| last_indexed | 2024-12-12T07:07:06Z |
| publishDate | 2022-06-01 |
| publisher | European Wave and Tidal Energy Conference |
| record_format | Article |
| series | International Marine Energy Journal |
| spelling | doaj.art-a855a86943314f71a4d156450781eeba2022-12-22T00:33:43ZengEuropean Wave and Tidal Energy ConferenceInternational Marine Energy Journal2631-55482022-06-015110.36688/imej.5.57-65Material and structural testing to improve composite tidal turbine blade reliabilityPeter Davies0Nicolas DumergueMael Arhant1Erwann NicolasStephane PaboeufPedro MayorgaIFREMERIFREMER 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. http://marineenergyjournal.org/imej/article/view/106Composite blade, Durability, Fullscale tests |
| spellingShingle | Peter Davies Nicolas Dumergue Mael Arhant Erwann Nicolas Stephane Paboeuf Pedro Mayorga Material and structural testing to improve composite tidal turbine blade reliability International Marine Energy Journal Composite blade, Durability, Fullscale tests |
| title | Material and structural testing to improve composite tidal turbine blade reliability |
| title_full | Material and structural testing to improve composite tidal turbine blade reliability |
| title_fullStr | Material and structural testing to improve composite tidal turbine blade reliability |
| title_full_unstemmed | Material and structural testing to improve composite tidal turbine blade reliability |
| title_short | Material and structural testing to improve composite tidal turbine blade reliability |
| title_sort | material and structural testing to improve composite tidal turbine blade reliability |
| topic | Composite blade, Durability, Fullscale tests |
| url | http://marineenergyjournal.org/imej/article/view/106 |
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