A landing gear arrangement may comprise a first composite layer, the first composite layer having a cylindrical geometry, a metallic ring comprising an inner surface and an outer surface, the metallic ring perimetrically surrounding at least a portion of the first composite layer, the inner surface being in contact with the first composite layer, a metallic connecting tab extending away from the outer surface, and a second composite layer at least partially perimetrically surrounding the metallic ring and at least partially perimetrically surrounding the first composite layer, the outer surface being in contact with the second composite layer.

A connecting rod includes a shank formed of a composite. The connecting rod also includes a first end portion coupled to the shank and a second end portion coupled to the shank. The first end portion has an annular shaped portion, and the second end portion has an annular shaped portion. The shank defines a channel coupled to the first and second end portions.

A method of manufacturing a connecting rod includes placing a plurality of fibers in a predetermined arrangement, and adding a resin to the plurality of fibers to connect the fibers together and form a composite of at least a shank. The method also includes disposing a component inside the shank, and the component is utilized to define a channel in the shank. The method further includes coupling a first end portion to the shank, and coupling a second end portion to the shank.

A metallic/composite joint may comprise a composite member having a flared end or an angled end, a liner perimetrically surrounding the composite member, and a metallic member perimetrically surrounding the liner. A first side of the liner contacts the composite member and a second side of the liner contacts the metallic member. The liner perimetrically surrounds at least a portion of the flared end. A through-thickness compressive stiffness of the liner may be less than a similar stiffness of the composite member.

A strut comprises a composite cylinder with a mid-strut fitting mounted on an interface region on a mid-portion of said cylinder. At least in the interface region, layers of helical-filaments are displaced radially-outward and even inclined with respect to an axis of the cylinder such that they may follow a path with a radial component. A mid-strut fitting is provided which has a plurality of teeth on an inner circumferential surface. The plurality of teeth engage the helical-filaments in the interface region to provide a mechanical connection. Portions of surface and intermediate layers of the helical-filaments may be removed to expose ends of those filaments in the interface region before mounting the mid-strut fitting on the cylinder.

A low-cost method of manufacturing a composite tube assembly having a composite fiber tube connected to metallic end fittings includes placing at least one end fitting on a mandrel, the end fitting including a grip region having a plurality of external surfaces, wrapping a fiber tow around the grip region of each end fitting and the mandrel to form a fiber-wrapped assembly, curing the fiber tow, and removing the mandrel to yield a completed tube assembly. The method may include positioning a plurality of compression inserts around the grip region after some of the fiber tow has been wrapped around the grip region, and wrapping additional fiber tow around the compression inserts and the grip region. The compression inserts may have a rounded outer surface such that an end portion of the tube wound around the compression inserts has a round outer cross-sectional shape.

A method for coupling a fitting to a tubing end includes pressing a collar over the outer surface of the tubing until the strain on the collar in the hoop direction is at a predetermined level, or pressing a collar with a predetermined axial load.

A joint for a composite frame includes a first composite rod, a first shell abutting the first composite rod, a second shell abutting the first composite rod and disposed opposite the first shell relative to the first composite rod. The first and second shells are joined together such that composite rod is fixed therebetween. A method of forming joints of composite frame includes forming a composite frame by interconnecting a plurality of composite rods formed by an Automated Fiber Placement (AFP) manufacturing method around a mandrel, applying a first shell to the plurality of composite rods at a first location where composite rods are interconnected, applying a second shell at the first location opposite the first shell relative to the composite rods, and joining the first and second shells together with the composite rods at the first location disposed between the first and second shells.

A method for coupling a fitting to a tubing end includes pressing a collar over the outer surface of the tubing until the strain on the collar in the hoop direction is at a predetermined level, or pressing a collar with a predetermined axial load.

Disclosed are methods and related compositions for producing a positive-locking load application for rod-shaped fiber composite structures, and the design thereof. The present invention concerns a method for producing a positive-locking load application for tension-compression rods from a fiber plastic hollow structure by means of an outer sleeve. In this process, a force pushes the fiber plastic hollow structure at least partially over at least one force application element, which is provided with at least one undercut to create a positive-locking connection. An object of the present invention is attained through local heating of the fiber plastic hollow structure to the point of plasticity of the fiber plastic hollow structure, at least in the region of the undercut(s) of the force application element, and application of at least one outer sleeve to the fiber plastic hollow structure in the region of the force application element.

The invention relates to a connecting rod comprising, at each of its two ends, a connecting part intended to cooperate with an external member, one of these connecting parts comprising a yoke (1) and the other of these connecting parts comprising an eyelet (3), said yoke (1) being connected to said eyelet (3) by a continuous reinforcing strip (5) forming a loop, said yoke (1), said eyelet (3) and said strip (5) being overmolded at least partially by a thermoplastic material (15).