Damage detection in the composite wind turbine blade for bridge applications
Many composite wind turbine blades are already reaching their design time. Thus, new ideas are investigated to give them a second life in new applications. In collaboration with the Rzeszów University of Technology, the blade’s part was tested by multiple surface-mounted optical DFOS fibres. Thanks to that approach, we created a big 3DSensor from the structural component itself, able for self-diagnostics by measuring strains (με) and calculating displacements (mm).
DFOS Sensors Installed: Optical fibre in acrylate coating
Project challenges
Benefits of using the DFOS monitoring system
Results of using the DFOS monitoring system
Six measurements lines were installed on the surface of a composite wind turbine blade at different positions around the cross-section. After dynamic reading during load cycles, the component was loaded statically. The DFOS-based system allowed not only for strain and displacement measurements over the entire length but also for the identification of safety- critical cross-sections and, finally, the fracture.
Technical specifications
Example results
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John Doe