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| Boisseau, Amelie; Davies, Peter; Thiebaud, F.. |
| The development of ocean energy conversion systems places more severe requirements on materials than similar land-based structures such as wind turbines. Intervention and maintenance at sea are very costly, so for ocean energy supply to become economically viable long term durability must be guaranteed. Cyclic loading is a common feature of most energy conversion devices and composites are widely used, but few data are available concerning the fatigue behaviour in sea water of composite materials. This paper presents the results from an experimental study to fill this gap. The fatigue behavior of composite materials reinforced with different types of glass fibre is characterized in air and in sea water; the influence of testing in sea water rather than air... |
| Tipo: Text |
Palavras-chave: Composite material; Fatigue behaviour; Sea water ageing; Failure mechanism; Tidal turbine. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00134/24554/22685.pdf |
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| Boisseau, Amelie; Davies, Peter; Thiebaud, Frederic. |
| Composite material components will be an essential part of ocean energy recovery devices, and their long term durability in sea water must be guaranteed. Despite extensive experience for boat structures and wind turbines few data exist to design structures subjected to a combination of mechanical loads and sea water immersion. This paper presents the first results from an experimental study, performed jointly with fibre manufacturers, and a resin supplier, to fill this gap. The experimental study is completed by numerical modelling to simulate the coupling between water absorption and mechanical behaviour. Sea water ageing is shown to result in a drop in quasi-static mechanical properties and a change in flexural mode from compression to tension at longer... |
| Tipo: Text |
Palavras-chave: Composite material; Sea water ageing; Failure mechanism; Flexure; Tidal turbine. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00085/19578/17220.pdf |
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| Tolêdo Filho,Romildo Dias; Joseph,Kuruvilla; Ghavami,Khosrow; England,George Leslie. |
| ABSTRACT The inclusion of fibre reinforcement in concrete, mortar and cement paste can enhance many of the engineering properties of the basic materials, such as fracture toughness, flexural strength and resistance to fatigue, impact, thermal shock and spalling. In recent years, a great deal of interest has been created worldwide on the potential applications of natural fibre reinforced, cement based composites. Investigations have been carried out in many countries on various mechanical properties, physical performance and durability of cement based matrices reinforced with naturally occurring fibres including sisal, coconut, jute, bamboo and wood fibres. These fibres have always been considered promising as reinforcement of cement based matrices because... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Composite material; Natural fibres; Concrete; Mortar; Strength; Stiffness; Durability. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43661999000200245 |
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