The present invention is directed to a new concept for an internal metallic tank of large-scale high-pressure gasholder in which pluralities of internal tanks have been accumulated like a honeycomb structure and for the manufacturing processes of the internal metallic tank.

A process for manufacturing a composite panel includes providing at least one first ply of a woven or nonwoven dry material, the first ply defining a peripheral contour. A structuring element is placed inside the peripheral contour of said first ply, over at least one portion of this peripheral contour. A second ply of a woven or nonwoven dry material is placed so that said second ply covers both the first ply and the structuring element, or at least one portion of the first ply, which includes the peripheral contour, is folded over to cover the structuring element, and a second ply of a woven or nonwoven dry material is placed so that said second ply covers the first ply, but not the structuring element. A thermoplastic or thermosetting resin is injected into mould containing the stack to impregnating the plies. The impregnated piles are pressed into a composite panel.

Hollow composite dowel bar assemblies, their manufacture, and apparatus for manufacture. The dowel bar assemblies may include an elongate and hollow core, a protective jacket coating at least the sidewall exterior of the core, and a sealing structure coupled with each end of the combined core and jacket, that are configured to protect the core from the environment.

A construct for a hockey blade that includes a foam core. The foam core includes a first core face, a second core face, and a core edge. A first layer of resin preimpregnated tape is wrapped continuously around the first core face, the core edge and the second core face. A thread is stitched along the first layer of preimpregnated tape. A second layer of resin preimpregnated tape wrapped continuously around the first layer of resin preimpregnated tape.

A composite structure includes a base structure, a core disposed on the base structure, the core having a non-uniform contour relative to the base structure, a layered cover material disposed on the base structure covering the core, the layered cover material conforming to the non-uniform contour of the core and having at least one overlay ply, each of the at least one overlay ply having at least one slit cut through fibers of the respective overlay ply, and at least one cover ply having a shape that spans the at least one slit, and being configured to transfer a load across the at least one slit.

A method may comprise applying a first adhesive to a cavity of a bond panel, the cavity defined by a raised body portion of the bond panel, inserting an acoustic insert assembly in the cavity, the acoustic insert assembly being secured in the cavity by the first adhesive, and securing edges of the acoustic insert assembly to the raised body portion of the bond panel with a second adhesive to create a seamless interface between the edges and the raised body portion.

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.

A non-metallic rim for a wheel which may be used for motorised vehicles. The rim has a barrel, a first flange, a second flange, a first bead seat, a second beat seat and a primary structural component. The primary structural component extends into at least the first flange and the barrel, and the primary structural component is capable of bearing the majority of the radial and/or lateral load that is borne by the rim during usage. Additionally, the rim has at least a portion of the first bead seat spaced apart from the primary structural component and/or has a protective insert in between the outer face of the first flange and the primary structural component.

According to a manufacturing method and device for manufacturing a composite material having reinforced base materials with a resin impregnated in the reinforced base materials. An unactivated powdered adhesive is applied to at least one surface of a plurality of carbon fiber sheets. The carbon fiber sheets are laminated to form a laminate. At least a portion of the unactivated powdered adhesive that is applied between layers of the laminate is removed using an airflow that flows from one exterior surface of the laminate to an opposite exterior surface of the laminate to form a preform having a first region in which the activated adhesive is impregnated in the laminate, and a second region in which a content density of the activated adhesive is less than that in the first region.

Provided is a method of shaping a composite blade made of a composite material by curing prepreg in which reinforcing fibers are impregnated with resin. A foaming agent disposed in an internal space of the composite blade contains a plurality of foaming bodies and foaming agent resin. The foaming bodies foam by being heated. The foaming agent resin cures by being heated. The foaming bodies include low-temperature side foaming bodies and high-temperature side foaming bodies. The low-temperature side foaming bodies foam in a low temperature range during a curing step. The high-temperature side foaming bodies foam in a high temperature range corresponding to temperatures higher than the low temperature range during the curing step.