Fatigue analysis of wind turbine tower-flange connections: investigating structural ruptures

Wind turbines are a vital part of renewable energy systems, but their long-term performance relies on the structural strength of every component. One of the most critical areas is where the tower connects to the flange, a joint that often faces fatigue-related ruptures due to constant stress and environmental conditions. This thesis focuses on analyzing the fatigue behavior of this connection, aiming to understand why these failures happen and how they can be prevented. Using advanced simulations, the study explores how factors like material properties, design geometry, and cyclic loads contribute to stress concentrations and eventual damage. The results offer practical insights for improving the durability and reliability of wind turbine towers, ensuring they can operate safely over their intended lifespan.