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An optimized method for testing wind turbine blades under fatigue is suggested. With this method, material-based damage targets along the blade are reached by applying an optimal combination of different uni- and multi-axial test blocks. The combination of test blocks is found using continuous linear optimization. Aeroelastic simulations are carried out to estimate both target and test strain-based damage in the blade. By applying the proposed method to a commercial wind turbine blade, the presented analysis illustrates that improved fatigue tests compared to current standard fatigue tests can be obtained in terms of both accuracy and total test time.
|Number of pages||17|
|Publication status||Published - 2021|
- Fatigue testing
- Wind turbine blades
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CASMaT: Villum Center for Advanced Structural and Material Testing
Stang, H., Kleis, C., Mikkelsen, L. P., Sørensen, B. F., Toftegaard, H., Berggreen, C., Branner, K., Michel, A., Andreassen, M. J., Luczak, M., Chen, X., Bjørnbak-Hansen, J., Legarth, B. N., Waldbjørn, J. P., Bangaru, A. K., Moncy, A. & Quinlan, A. R.
07/11/2017 → …