Yousuf AH, Al-Fattal DS, Sadkhan BA. Fatigue Behavior Safe Life Analysis of Composite Wind Turbine Blades Under Constant and Variable Spectrum Loading. NUCEJ. 2012;15(1):29-41. Accessed January 31, 2026. https://oldjournal.eng.nahrainuniv.edu.iq/index.php/main/article/view/636