Improved design for large wind turbine blades of fibre composites (Phase 3): Summary report

Bent F. Sørensen, Kim Branner, E. Lund, J. Wedel-Heinen, H. Garm

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    An overview is given of the activities of the project "Improved design for large wind turbine blades (Phase 3)", partially supported by the Danish Energy Agency under the Ministry of Climate and Energy through the EFP-grant no. 33031-0078. The project was focussed at the development of new design methods for wind turbine blades, so that uncertainties associated with damage and defects can be reduced. The following topics with respect to failure modes were covered: Buckling-driven delamination of loadcarrying laminates, cracking along interfaces in material joints, implementation of cohesive laws in finite element programmes and hierarchical finite element models. Methods and major research results of the project are summarised. Some future goals for future research activities are briefly discussed.
    Original languageEnglish
    Place of PublicationRoskilde
    PublisherDanmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi
    Number of pages29
    ISBN (Print)978-87-550-3761-8
    Publication statusPublished - 2009
    SeriesDenmark. Forskningscenter Risoe. Risoe-R


    • Wind energy
    • Light strong materials for wind turbines and for transportation
    • Risø-R-1699
    • Risø-R-1699(EN)


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