Abstract: A wind turbine blade 2 for a rotor has a longitudinal direction extending from a root region 26 to a blade region. The wind turbine blade 2 is formed of a fibre-reinforced polymer material comprising a polymer matrix and a first and a second reinforcement fibre material being embedded in the polymer matrix. The wind turbine blade further comprises a first region being reinforced predominantly with the first reinforcement fibre material, a second region being reinforced predominantly with the second reinforcement fibre material, and a transition region between the first and the second region. The first region extends in the root region 26 and the first reinforcement fibre material is a metal.

Abstract: 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 ring-shaped cross section and comprises a plurality of elongated bushings 7 with an inner thread 22 and 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. Each fastening member 7 is provided with a notch 60? in the periphery 11 thereof. A rod-shaped locking element 61 passes through the notch 60? in engagement therewith. The locking element 61 is fixedly and tightly fitting arranged in a through-going circular bore 65 extending through the wall of the root region.

Abstract: A wind turbine blade for a wind turbine is a shell structure of a fiber-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 fiber-reinforced polymer so as to substantially follow the circumference of the root region and allow access from the outside to the inner threads 22. The bushings 7 are formed conically tapering from a second end towards a first end thereof, the first end of the bushing 7 being arranged at the end face of the root region.

Abstract: A wind turbine blade for a wind turbine is a shell structure of a fiber-reinforced composite and comprises a root region and an airfoil region. The root region has a ring-shaped cross section and comprises a cylindrical insert 7 embedded in the fiber-reinforced polymer so as to substantially follow the circumference of the root region. The cylindrical insert is provided with a number of mutually spaced threaded bores 12, 15 in a first end 9 thereof being accessible from the outside.

Abstract: A wind turbine blade 2 comprises a profiled contour including a leading edge 34 and a trailing edge 33 as well as a pressure side and a suction side. The profiled contour is formed by a first shell part 10 and a second shell part 15 being bonded together in a bonding region between the first and the second shell part by a curable bonding means 40. The first and the second shell part 10; 15 are formed in a fiber-reinforced polymer. The wind turbine blade further comprises resistive heating means 50 being arranged in thermal connection with the bonding means 40 such that the resistive heating means 50 supplies heat for curing of the curable bonding means 40 during assembling of the wind turbine blade.

Abstract: A wind turbine blade 2 for a rotor has a longitudinal direction extending from a root region 26 to a blade region. The wind turbine blade 2 is formed of a fibre-reinforced polymer material comprising a polymer matrix and a first and a second reinforcement fibre material being embedded in the polymer matrix. The wind turbine blade further comprises a first region being reinforced predominantly with the first reinforcement fibre material, a second region being reinforced predominantly with the second reinforcement fibre material, and a transition region between the first and the second region. The first region extends in the root region 26 and the first reinforcement fibre material is a metal.

Abstract: 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 cylindrical insert 7 embedded in the fibre-reinforced polymer so as to substantially follow the circumference of the root region. The cylindrical insert is provided with a number of mutually spaced threaded bores 12, 15 in a first end 9 thereof being accessible from the outside.

Abstract: 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 ring-shaped cross section and comprises a plurality of elongated bushings 7 with an inner thread 22 and 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. Each fastening member 7 is provided with a notch 60? in the periphery 11 thereof. A rod-shaped locking element 61 passes through the notch 60? in engagement therewith. The locking element 61 is fixedly and tightly fitting arranged in a through-going circular bore 65 extending through the wall of the root region.

Abstract: A wind turbine blade 2 comprises a profiled contour including a leading edge 34 and a trailing edge 33 as well as a pressure side and a suction side. The profiled contour is formed by a first shell part 10 and a second shell part 15 being bonded together in a bonding region between the first and the second shell part by a curable bonding means 40. The first and the second shell part 10; 15 are formed in a fibre-reinforced polymer. The wind turbine blade further comprises resistive heating means 50 being arranged in thermal connection with the bonding means 40 such that the resistive heating means 50 supplies heat for curing of the curable bonding means 40 during assembling of the wind turbine blade.

Abstract: 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. The bushings 7 are formed conically tapering from a second end towards a first end thereof, the first end of the bushing 7 being arranged at the end face of the root region.