Strength analysis of a 5-m composite wind turbine blade under static and fatigue loading conditions. Issue 1 (October 2020)

• Record Type: Journal Article
• Authors: Muyan, C; Coker, D
• Is Part Of: IOP conference series. Volume 942:Issue 1(2020)
• Publication Date: 2020-10
• Subjects: Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/942/1/012045
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: This study focuses on the static and fatigue strength analysis of the existing 5-m RUZGEM composite wind turbine blade with and without defect in the form of debonding. Puck progressive damage analysis is used to investigate the effect of defect introduced to the spar/pressure side interface on the ultimate strength under extreme flap-wise (min) by single-loading point application. In addition, fatigue life according to the Germanischer Lyod (GL) guidelines is determined. For the original blade, collapse is observed after 85% loading, whereas due to defect, failure region changes and the blade collapses after 69% loading. Blade is found to exhibit sufficient resistance against fatigue. However, the inclusion of defect decreases the fatigue life of the blade significantly.