B29C70/865

HOCKEY STICK WITH CO-MOLDED CONSTRUCTION
20190255405 · 2019-08-22 ·

A hockey stick with a co-molded structure and method where the blade member is formed by a molding process onto a preformed shaft member, where the preformed shaft member has a contoured tip at the blade end. The contoured tip helps to secure the blade member to the shaft member in conjunction with the molded composite layers, and in one example, the contoured tip has a width that is greater than the width of the shaft member at the blade-starting region.

METHOD OF SUPPORTING SHEAR WEBS OF A WIND TURBINE BLADE
20240151206 · 2024-05-09 ·

The present invention relates to a method of manufacturing a wind turbine blade (10). The method comprises arranging one or more shear webs (50, 55, 70) within a first shell half, adhesively joining the one or more shear webs to the first shell half, and adhesively joining the second shell half to the first shell half and to the one or more shear webs. The step of arranging the one or more shear webs within the first shell half comprises arranging at least one telescopic support member (80) between the inside surface (38b) of the first shell half (38) and the lateral surface (62) of at least one of the shear webs (70), wherein the telescopic support member (80) comprises an actuator (82) for adjusting the length of the telescopic support member.

Composite Sandwich Panels with Over-Crushed Edge Regions

A composite sandwich panel comprises a first composite skin, a second composite skin, a hollow cell core between the first composite skin and the second composite skin, and a first over-crush edge region with a first edge. The first edge has a first thickness at least 40% less than a nominal thickness of the composite sandwich panel. The first over-crush edge region has a length of at least 0.25 inches over which a thickness of the composite sandwich panel decreases.

Composite Components Having T or L-Joints and Methods for Forming Same

Composite components having a T or L-shaped configuration that include features that reduce void defects between abutting laminate portions and provide improved mechanical properties are provided. Methods for forming such components are also provided. In one exemplary aspect, a composite component defines a first direction and a second direction and includes a wedged-shaped noodle at a joint interface between an abutting first laminate portion extending along the first direction and a second laminate portion extending along the second direction. The noodle has a first surface that is angled with respect to the second direction. At least one of the plies of the second laminate portion terminate and attach to the angled first surface of the noodle.

Epoxy Core with Expandable Microspheres
20190217555 · 2019-07-18 · ·

A method of fabricating a formed structure with expandable polymeric shell microspheres. A first plurality of polymeric shell microspheres are heated from an unexpanded state to an expanded state to form a plurality of expanded microspheres. The plurality of expanded microspheres are mixed with an epoxy resin and a second plurality of unexpanded polymeric shell microspheres. The mixture is formed in a shape to create a preform. The preform is wrapped with fiber tape to create a wrapped preform. The wrapped preform is placed in a mold. The mold is heated and the second plurality of unexpanded microspheres expand from an unexpanded state to an expanded state. The mold is cooled and the formed structure is removed from the mold.

Shape memory alloy variable stiffness airfoil

An aerostructure is provided. The aerostructure may comprise an airfoil extending from a leading edge to a trailing edge, the airfoil comprising a stiffness and a camber, and a shape memory alloy (SMA) mechanically coupled to the airfoil via a resin, the SMA configured to be coupled to a current source, wherein at least one of the stiffness or the camber changes in response to a phase change of the SMA.

HYBRID METALLIC/COMPOSITE AXIAL TENSION/COMPRESSION LOBE JOINT
20190211857 · 2019-07-11 · ·

A composite tube joint may comprise an end of a composite tube, an attachment feature comprising a first portion disposed within the end and a second portion extending from the end, wherein the first portion comprises a protuberant surface, and the protuberant surface mitigates movement of the attachment feature relative to the composite tube.

Hockey stick with co-molded construction
10315082 · 2019-06-11 · ·

A hockey stick with a co-molded structure and method where the blade member is formed by a molding process onto a preformed shaft member, where the preformed shaft member has a contoured tip at the blade end. The contoured tip helps to secure the blade member to the shaft member in conjunction with the molded composite layers, and in one example, the contoured tip has a width that is greater than the width of the shaft member at the blade-starting region.

CASING OF REINFORCED COMPOSITE MATERIAL, AND A METHOD OF FABRICATING IT

A method of fabricating a gas turbine casing out of composite material of varying thickness, the method including making a strip-shaped fiber texture by three-dimensional weaving; winding the fiber texture as a plurality of superposed layers onto a mandrel of profile corresponding to the profile of the casing that is to be fabricated, so as to obtain a fiber preform of shape corresponding to the shape of the casing that is to be fabricated; and densifying the fiber preform with a matrix; wherein, before beginning to wind the fiber texture onto the mandrel, a reinforcing band of width smaller than the width of the fiber texture is placed on the mandrel in a zone that is to form a retention zone of the casing.

Hockey Stick with Co-Molded Construction
20190160355 · 2019-05-30 · ·

A hockey stick with a co-molded structure and method where the blade member is formed by a molding process onto a preformed shaft member, where the preformed shaft member has a contoured tip at the blade end. The contoured tip helps to secure the blade member to the shaft member in conjunction with the molded composite layers, and in one example, the contoured tip has a width that is greater than the width of the shaft member at the blade-starting region.