A gas turbine engine component includes a tubular body section including a plurality of fiber wraps encompassed within a matrix composition and one or more integrally-formed stiffeners extending from an outer surface of the body section and in a component circumferential direction around the body section. The stiffener includes one or more fiber wraps extending radially outwardly from the body section over a form and to the body section from the form.

The disclosed composite structure provides a reinforced thermoplastic polymer composite part with a high-quality surface finish. This may be used as a vehicle part or body panel, such as an interior vehicle part or exterior body panel. Additionally, the surface finish may be coloured, such that the surface does not need to be painted or wrapped to achieve a desired surface colour, and the surface may protect inner layers from UV radiation, either by virtue of the material of the surface itself, or the incorporation of a UV-absorbing additive. Specifically, the disclosed composite structure comprises a structural layer comprising reinforcing fibres, such as glass or carbon fibres, and a thermoplastic body polymer. The structure further comprises a surface layer providing a surface finish to the composite structure, the surface layer comprising a thermoplastic surface polymer substantially free from reinforcing fibres.

Disclose are is method of manufacturing a ventilation sheet for a vehicle. The ventilation sheet for a vehicle is manufactured by performing anti-fouling finishing treatment using an anti-fouling coating agent including an anti-fouling composition. The anti-fouling properties can be improved to prevent the sheet from being fouled, and flame-retardant treatment is performed through a flame-retardant aqueous solution including flame-retardant PET fiber and flame retardant in bath so that the deterioration of flame retardancy caused by the improved anti-fouling properties can be prevented through the flame-retardant treatment while ventilation properties are maintained.

A fiber-reinforced resin molded article is produced by pressing a plurality of thermoplastic base material sheets, each of which contains a plurality of reinforcing fibers, in a stacked state where the base material sheets are stacked so that the fiber directions (orientation direction of the reinforcing fibers) are alternated. Each base material sheet is provided with a cut including: a plurality of lengthwise cut lines extending parallel to the fiber direction; and a plurality of crosswise cut lines extending parallel to a direction that is perpendicular to the fiber direction. A plurality of cut interruption parts for interrupting the lengthwise cut lines in the fiber direction are formed. The cut interruption parts are arranged in a staggered manner so as to be displaced from each other in the fiber direction.

A fiber-reinforced resin molded article is produced by pressing a plurality of thermoplastic base material sheets, each of which contains a plurality of reinforcing fibers, in a stacked state where the base material sheets are stacked so that the fiber directions (orientation direction of the reinforcing fibers) are alternated. Each base material sheet is provided with a cut including: a plurality of lengthwise cut lines extending parallel to the fiber direction; and a plurality of crosswise cut lines extending parallel to a direction that is perpendicular to the fiber direction. A plurality of cut interruption parts for interrupting the lengthwise cut lines in the fiber direction are formed. The cut interruption parts are arranged in a staggered manner so as to be displaced from each other in the fiber direction.

Methods of fabricating a multi-region U-shaped composite structure, the methods comprising the steps of laying up a first composite material on a first tool piece to form a first sidewall, laying up the second composite material on a second tool piece tool to form a second sidewall, re-orienting the first tool piece and the second tool piece to a consolidation orientation, laying up the third composite material to form a nose wall, and overlapping at least a portion of the third composite material with at least a portion of the first composite material and at least a portion of the second composite material.

The glass fiber-reinforced resin molded article includes a glass fiber fabric and a transparent resin. The average resin unimpregnation ratio in proximity to filament of the glass fiber fabric is more than 2.0% and 50.0% or less, the warp yarn width Bt and the weft yarn width By of the glass fiber fabric each are from 0.50 to 8.50 mm, the warp yarn weaving density Wt and the weft yarn weaving density Wy of the glass fiber fabric each are from 3.0 to 50 yarns/25 mm, and the degree of widening of warp yarn Et and the degree of widening of weft yarn Ey of the glass fiber fabric each are from 0.70 to 1.10.

The glass fiber-reinforced resin molded article includes a glass fiber fabric and a transparent resin. The average resin unimpregnation ratio in proximity to filament of the glass fiber fabric is more than 2.0% and 50.0% or less, the warp yarn width Bt and the weft yarn width By of the glass fiber fabric each are from 0.50 to 8.50 mm, the warp yarn weaving density Wt and the weft yarn weaving density Wy of the glass fiber fabric each are from 3.0 to 50 yarns/25 mm, and the degree of widening of warp yarn Et and the degree of widening of weft yarn Ey of the glass fiber fabric each are from 0.70 to 1.10.

A wind turbine blade including a shell structure defining a leading edge and a trailing edge, and an upwind shell and a downwind shell joined along at least one of the leading edge or the trailing edge. The shell structure includes an assembly of preformed parts processed into a collection of prefabricated laminates. The invention also includes a method of manufacturing a wind turbine blade, the method includes processing a number of preformed parts into a collection of prefabricated laminates and assembling the collection of prefabricated laminates to build a shell structure defining a leading edge and a trailing edge.

An octogrid structure and method of forming the same for a composite laminate structure is provided. The octogrid sub-structure comprises: a first ply layer comprising a plurality of first elongate tapes oriented in a first direction and a plurality of second elongate tapes oriented in a second direction; and a second ply layer comprising a plurality of third elongate tapes oriented in the first direction and a plurality of fourth elongate tapes oriented in the second direction, the second ply layer being overlaid atop the first ply layer. A first end of each of the elongate tapes is positioned approximately adjacent a midpoint of an adjacently positioned one of the elongate tapes; and a second and opposing end of each of elongate tapes extends freely beyond a central grid portion defined by a length of a portion between the first end and the midpoint of the elongate tapes.