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Effect of Delamination Defects on Buckling Behavior of Wind Turbine Blades

  • Vinodkumar BonifaceEmail author
Conference paper
  • 765 Downloads

Abstract

Blades in wind turbines are used to capture energy from wind. For MW-class wind turbines, these blades are usually composite structures. They are generally made of glass-fiber composites, while carbon-fiber composites are used selectively in large blades. Stability of these structures is one of the key design drivers. In spite of increasing focus on stringent manufacturing processes, some defects are occasionally seen in the products which lead to reduced margins and lowered life spans. These defects could be delaminations, waves, debond, etc., which can impact various design parameters such as strength, stability, and fatigue life. The specific problem of the effect of delaminations on buckling is addressed in this paper. A typical laminate stack-up is used along with different defect locations and sizes, to arrive at a comprehensive understanding and propose a new delamination model for finite element analysis. A review of recent literature is also presented.

Keywords

Wind turbine blade Composite laminate Delamination Buckling 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.GE Renewable EngineeringJohn F. Welch Technology CenterBangaloreIndia

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