The occurrence of cracks in the mainframes of G47 and V47 wind turbines is a widely recognized issue in the wind energy sector, especially in localized areas of the mainframe associated with welded joints. These cracks are typically caused by stress concentration factors arising from both the structural design of the mainframe and its manufacturing process.
Last week, we had the pleasure of participating as speakers at the EXPOFIMER 2025 conferences, a key event for the operation and maintenance sector in renewable energy.
Today, we encounter a number of components that, due to inadequate design, suffer structural problems before the 20 year period. An example of such, is the rear frame of some 2.0 MW platforms.
In a wind farm located in Greece, a complex site characterized by extremely high turbulences, recurrent failures were experienced in the turbine blades leading to blade breakage.
