WIND TURBINE BLADE HAVING A ROOT REGION WITH ELONGATED FASTENING MEMBERS PROVIDED WITH METAL FIBRES

摘要

A wind turbine blade for a wind turbine is a shell structure of a fibre-reinforced composite and comprises a root region and an airfoil region. The root region has a ring-shaped cross section and comprises a plurality of elongated bushings 7 with an inner thread 22 and which are embedded interspaced in the fibre-reinforced polymer so as to substantially follow the circumference of the root region and allow access from the outside to the inner threads 22. Each bushing 7 is provided with metal fibres 13, a first end 201 thereof being firmly fixed to the bushing. The remaining portion of 203 of the metal fibres extends from the bushing 7 and is embedded in the polymer matrix of the fibre-reinforced composite.