Abstract: The disclosed embodiments concern a curved structural part composed of a composite material with reinforced, continuous fibers whose cross section includes at least two wings, with said fibers extending from one wing to the other, with said structural part having a variation in the width of its section parallel to the local radius of curvature. The structural element that results from assembling the parts in the disclosed embodiments therefore has local widening of the section at the connections between the parts constituting a structural element, such as an aircraft fuselage frame, and widening at the connection with the floor profiles, if such a profile is used to make an aircraft fuselage structure. The disclosed embodiments also concern a process for manufacturing such a part, as well as a device for advantageously implementing such a process.

Abstract: A process for manufacturing a curved structural part includes fabricating a mold of the curved structural part having at least two faces that form a male mold section between a minimum radius of curvature of the curved structural part and another radius of curvature belonging to one of the two faces, preparing a stack of multidirectional fibers of one or more fiber plies oriented ±? or 90° in relation to a longitudinal direction of the curved structural part, cutting a first multidirectional strip in the stack extending longitudinally and having a width at least equal to a maximum width of the curved structural part, applying the first multidirectional strip over the mold to gradually conform the first multidirectional strip to the mold, applying the first multidirectional strip on the face having the minimum radius of curvature, and pressing and tightening the first multidirectional strip over the other faces.

Abstract: A process for manufacturing a curved structural part includes fabricating a mold of the curved structural part having at least two faces that form a male mold section between a minimum radius of curvature of the curved structural part and another radius of curvature belonging to one of the two faces, preparing a stack of multidirectional fibers of one or more fiber plies oriented ±? or 90° in relation to a longitudinal direction of the curved structural part, cutting a first multidirectional strip in the stack extending longitudinally and having a width at least equal to a maximum width of the curved structural part, applying the first multidirectional strip over the mold to gradually conform the first multidirectional strip to the mold, applying the first multidirectional strip on the face having the minimum radius of curvature, and pressing and tightening the first multidirectional strip over the other faces.

Abstract: The disclosed embodiments concern a curved structural part composed of a composite material with reinforced, continuous fibers whose cross section includes at least two wings, with said fibers extending from one wing to the other, with said structural part having a variation in the width of its section parallel to the local radius of curvature. The structural element that results from assembling the parts in the disclosed embodiments therefore has local widening of the section at the connections between the parts constituting a structural element, such as an aircraft fuselage frame, and widening at the connection with the floor profiles, if such a profile is used to make an aircraft fuselage structure. The disclosed embodiments also concern a process for manufacturing such a part, as well as a device for advantageously implementing such a process.