A hole plug that can be used during rework or repair of a composite fiber assembly includes various features that allow placement of a vacuum force to the surface being reworked or repaired. In some implementations, the hole plug can include a plurality of nubs positioned around a shank. The nubs can secure the hole plug to the composite fiber assembly until a cure of an adhesive. The hole plug can further include a plurality of longitudinally oriented grooves extending along the shank and positioned between the plurality of nubs, and can include a notch positioned circumferentially around the shank. The grooves and notch can be used as adhesive carriers that assist with dispersal of a sufficient volume of the adhesive onto other portions of the shank and the composite fiber assembly during insertion of the hole plug into a hole in the composite fiber assembly.

A bladder-type pressure tank includes an outer shell, a bladder, a nozzle, and an elbow pipe. The outer shell includes a liner and a glass-fiber layer covering the outer surface of the liner. The liner includes polyethylene (PE). The liner further includes a chamber, a first opening, and a second opening. The bladder is disposed in the chamber. In an inflated state of the bladder, a gap is formed between the inflated bladder and the inner surface of the liner. The bladder includes polyurethane (PU). The nozzle is integrated with the bladder, and is disposed in the first opening and seals the first opening. The elbow pipe includes a first end and a second end. The first end of the elbow pipe is disposed in the second opening and communicates with the chamber; and the second end of the elbow pipe is configured to connect to a pipeline.

A laminate assembly includes a matrix layer and elongated, continuous strips of a conductive alloy. The matrix layer has opposite first and second sides connected by opposite first and second edges. Each of the first and second edges extends from the first side of the matrix layer to the opposite second side of the matrix layer. The elongated, continuous strips of the conductive alloy are disposed in the matrix layer between the first and second sides of the matrix layer. The elongated continuous strips continuously extend through the matrix layer from the first edge to the opposite second edge.

A fiber-reinforced polymer composite assembly, that includes a plurality of sheets, each formed from a composite mixture including a fibrous material and a resin, wherein each of the first plurality of sheets are cut to one or more predetermined dimensions. The plurality of sheets are configured to form a stack, and wherein the stack is shaped by positioning the stack on a mold and pressing and consolidating/curing the stack to form a doubly-curved geometric shape. An insert may be positioned between the plurality of sheets, prior to the pressing and consolidating/curing, wherein the fibrous material may in include paper, and wherein the resin includes one of a thermoset resin or a thermoplastic resin.

Methods and manufactures disclosed herein generally relate to a cannular composite (ITC) structure composed of multiple layers of sealing, reinforcement, sensing, protection, and interspatial injected materials.

Methods and manufactures disclosed herein generally relate to a cannular composite (ITC) structure composed of multiple layers of sealing, reinforcement, sensing, protection, and interspatial injected materials.

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.

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.

A fiber-composite part having one or more electronic components that are located in arbitrary regions of the internal volume of the part are fabricated using a preform charge. The preform charge has a structure that corresponds to that of the mold cavity in which the part is being formed. By incorporating the electronic components in the preform charge, such components are then precisely located, spatially oriented, and constrained, and such location and orientation is maintained during molding to produce a part with the electronic components in the desired locations and orientations within its internal volume.

A fiber-composite part having one or more electronic components that are located in arbitrary regions of the internal volume of the part are fabricated using a preform charge. The preform charge has a structure that corresponds to that of the mold cavity in which the part is being formed. By incorporating the electronic components in the preform charge, such components are then precisely located, spatially oriented, and constrained, and such location and orientation is maintained during molding to produce a part with the electronic components in the desired locations and orientations within its internal volume.