Fatigue degradation and failure of rotating composite structures - Materials characterisation and underlying mechanisms

Kristofer Gamstedt, Svend Ib Smidt Andersen

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    Abstract

    The present review concerns rotating composite structures, in which fatigue degradation is of key concern for in-service failure. Such applications are for instance rotor blades in wind turbines, helicopter rotor blades, flywheels for energy storage, marine and aeronautical propellers, and rolls for paper machines. The purpose is to identify areas where impending efforts should be made to make better use of composite materials in these applications. In order to obtain better design methodologies, which would allow more reliable and slender structures, improved test methods are necessary. Furthermore, the relation between structural, component and specimen test results should be better understood than what is presently the case. Improved predictive methods rely on a better understanding of the underlying damage mechanisms. With mechanism-based models, the component substructure or even the material microstructure could be optimised for best possible fatigue resistance. These issues are addressed in the present report, with special emphasis on test methods, and scaling from damage mechanisms to relevant material properties.
    Original languageEnglish
    Place of PublicationRoskilde
    PublisherRisø National Laboratory
    Number of pages55
    ISBN (Print)87-550-2865-9
    Publication statusPublished - 2001
    SeriesDenmark. Forskningscenter Risoe. Risoe-R
    Number1261(EN)
    ISSN0106-2840

    Keywords

    • Risø-R-1261
    • Risø-R-1261(EN)

    Cite this

    Gamstedt, K., & Andersen, S. I. S. (2001). Fatigue degradation and failure of rotating composite structures - Materials characterisation and underlying mechanisms. Risø National Laboratory. Denmark. Forskningscenter Risoe. Risoe-R, No. 1261(EN)