The present invention relates to a method of manufacturing a wind turbine blade, comprising arranging one or more layers of fibre material and a preform in a mould (66), injecting the one or more layers of fibre material and the preform (76) with a curable resin, and curing the resin. The preform (76) is impregnated with a curing promoter such that the concentration of curing promoter varies spatially within the preform.

Shifting is a method for manipulating unidirectional non-crimp fabrics that allows for a curved fiber path along with compound surface geometry. The bases for shifting is understanding unidirectional (UD) non-crimp-fabrics (NCFs) as a semi-flexible prismatic linkage and planning manipulations such that the array of linkages can conform to the surface geometry and path plan within allowable manufacturing tolerances. This has applications in structural composite components such as the current trailing edge prefabricated unidirectional components for wind turbine blades, and for future wind turbine blade designs including a curve-linear spar cap.

Shifting is a method for manipulating unidirectional non-crimp fabrics that allows for a curved fiber path along with compound surface geometry. The bases for shifting is understanding unidirectional (UD) non-crimp-fabrics (NCFs) as a semi-flexible prismatic linkage and planning manipulations such that the array of linkages can conform to the surface geometry and path plan within allowable manufacturing tolerances. This has applications in structural composite components such as the current trailing edge prefabricated unidirectional components for wind turbine blades, and for future wind turbine blade designs including a curve-linear spar cap.

An apparatus for fastening a pair of gas vessels includes: a plurality of first units formed of a composite material, spaced apart from each other in parallel with each other in a length direction of the gas vessel, and having the pair of gas vessels seated on both sides thereof; a second unit formed of a composite material and extending in the length direction of the gas vessels to integrally connect the plurality of first units; and a plurality of fastening units each of which extending along a circumference of the gas vessels to enclose the gas vessels seated on the first units and having both ends connected to the first units.

An apparatus for fastening a pair of gas vessels includes: a plurality of first units formed of a composite material, spaced apart from each other in parallel with each other in a length direction of the gas vessel, and having the pair of gas vessels seated on both sides thereof; a second unit formed of a composite material and extending in the length direction of the gas vessels to integrally connect the plurality of first units; and a plurality of fastening units each of which extending along a circumference of the gas vessels to enclose the gas vessels seated on the first units and having both ends connected to the first units.

A composite prepreg laminate such as a hat type-stringer is formed on a contoured mandrel using a combination of mechanical sweeping and vacuum forming.

An iso-grid composite component according to an exemplary aspect of the present disclosure includes a spacer transverse to a uni-tape ply bundle, the spacer interrupted by the uni-tape ply bundle.

An iso-grid composite component according to an exemplary aspect of the present disclosure includes a spacer transverse to a uni-tape ply bundle, the spacer interrupted by the uni-tape ply bundle.

A composite structure, including a laminate that includes a set of plies, the laminate extending between a first edge and a second edge and including a rising ramp and a falling ramp. The rising ramp includes a starting point and an upper point and the falling ramp includes the upper point and an end point. Plies are partially located over their preceding ply and alternatively extend from the first edge or the second edge and are shorter than the ply located before the preceding ply so that their ends are stepped successively until they reach the top of the ramp.

The invention relates to a method for providing blanks (Z) from a fibre web (1) in a sequence predefined for constructing a workpiece from said blanks (Z) layer-by-layer, wherein the blanks (Z), which each belong to a removal region (E) of the fibre web (1), are removed from the removal regions (E) and deposited, per removal region (E), in at least one deposit element (A) and then removed from the deposit elements (A) in the sequence predefined for constructing the workpiece layer-by-layer. In order to create advantageous sorting conditions, according to the invention the blanks (Z) that are removed individually from the removal regions (E) are stacked on top of one another in the deposit elements (A) in each case in a sequence that is the reverse of their layering sequence in the workpiece.