publication . Article . Conference object . 2020

A practical approach for the peel stress prediction in the trailing-edge adhesive joint of wind turbine blades

Malo Rosemeier; T Gebauer; Alexandros Antoniou;
Open Access
  • Published: 08 Sep 2020 Journal: IOP Conference Series: Materials Science and Engineering, volume 942, page 12,026 (eissn: 1757-899X, Copyright policy)
  • Publisher: IOP Publishing
Abstract
Wind turbine blades consist of thin-walled cylindric and airfoil-shaped structures, which are prone to ���breathing��� or ���pumping��� when subjected to cyclic loading. The ���pumping��� induces a peel stress in the adhesive layer of the trailing-edge bond line. To take account of this peel stress in the design phase, adequate models are required. State-of-the-art blade finite element (FE) models are usually implemented using shell elements. The trailing-edge joint is often represented by solid elements that are connected with the shell elements. The peel stress peak of interest occurs at the edge of the adhesive joint, which is, subject to a singularity, howev...
Subjects
free text keywords: Structural engineering, business.industry, business, Adhesive, Trailing edge, Turbine blade, law.invention, law, Materials science
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