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- Title
Development of a High-fidelity Experimental Substructure Test Rig for Grid-scored Sandwich Panels in Wind Turbine Blades.
- Authors
Laustsen, S.; Lund, E.; Kühlmeier, L.; Thomsen, O. T.
- Abstract
ABSTRACT This paper outlines high-fidelity experimental substructure testing of sandwich panels which constitute the aerodynamic outer shell of modern wind turbine blades. A full-scale structural experimental and numerical characterisation of a composite wind turbine blade has been conducted. The development of a full-scale numerical model is detailed, and the necessary experimental set-up is described. Further, the numerical and experimental results obtained are compared, and an idealised set of boundary conditions for a chosen blade substructure is presented. From this, the development of a test rig suitable for representing the established loading and boundary conditions is presented, and some preliminary experimental results are discussed. The work provides a road map for developing high-fidelity experimental substructure tests, which in more generic terms are applicable to similar developments of substructure tests for composite wind turbine blades. Furthermore, recommendations on the use of grid-scored sandwich structures in wind turbine blades are presented, which outline the sensitivity in terms of quasi-static strength to the established loading conditions.
- Subjects
SANDWICH construction (Materials); LAMINATED materials; WIND turbine blades; COMPOSITE materials research; STRAINS &; stresses (Mechanics)
- Publication
Strain, 2014, Vol 50, Issue 2, p111
- ISSN
0039-2103
- Publication type
Article
- DOI
10.1111/str.12072