Wind Energy Science
Wind Energy Science
WES
Articles | Volume 10, issue 7
Articles | Volume 10, issue 7
https://doi.org/10.5194/wes-10-1249-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wes-10-1249-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 10, issue 7
Research article
 | 
07 Jul 2025
Research article |  | 07 Jul 2025

Non-proportionality analysis of multi-axial fatigue stress histories in trailing edge adhesive joints of wind turbine rotor blades

Claudio Balzani and Pablo Noever Castelos

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Short summary
Wind turbine rotor blades consist of subcomponents that are glued together. Such connections are subject to fatigue loads. This paper analyzes the fatigue load characteristics of three different wind turbine rotor blades in trailing edge adhesive joints. It is shown that the fatigue loads have measurable degrees of non-proportionality and that the choice of the procedure to calculate the fatigue damage is crucial for designing reliable blades.
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