Aeropspace structure including composite beam chord clamped between reinforcement plates
First Claim
Patent Images
1. A structure for an aerospace vehicle, the structure comprising:
- first and second metal plates; and
a beam chord permanently clamped between the first and second metal plates at a force that precludes or reduces delamination of the beam chord under axial loading during operation of the vehicle, the beam chord having a longitudinal axis and comprising a plurality of plies of reinforcing fibers extending in an x-y plane, wherein the reinforcing fibers of at least 60 percent of the plies of the plurality of plies are oriented at ±
α
degrees with respect to the longitudinal axis, where α
is from 2 to 12 degrees.
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Abstract
A structure for an aerospace vehicle includes a composite beam chord clamped between first and second metal plates. The beam chord is clamped at a force that precludes or reduces beam chord delamination under axial loading during operation of the vehicle.
18 Citations
21 Claims
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1. A structure for an aerospace vehicle, the structure comprising:
-
first and second metal plates; and a beam chord permanently clamped between the first and second metal plates at a force that precludes or reduces delamination of the beam chord under axial loading during operation of the vehicle, the beam chord having a longitudinal axis and comprising a plurality of plies of reinforcing fibers extending in an x-y plane, wherein the reinforcing fibers of at least 60 percent of the plies of the plurality of plies are oriented at ±
α
degrees with respect to the longitudinal axis, where α
is from 2 to 12 degrees. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. An aerospace vehicle comprising a fuselage, and wing assemblies coupled to the fuselage, at least one of the fuselage and the wing assemblies including a structure having first and second plates, a beam chord between the plates, and fasteners for clamping the beam chord between the plates at a force that precludes or reduces delamination of the beam chord under axial loading during operation of the vehicle, the beam chord having a longitudinal axis and comprising a plurality of plies of reinforcing fibers extending in an x-y plane, wherein the reinforcing fibers of at least 60 percent of the plies of the plurality of plies are oriented at ±
- α
degrees with respect to the longitudinal axis, where α
is from 2 to 12 degrees. - View Dependent Claims (17, 18, 19, 20)
- α
-
21. A fuselage comprising a keel beam including first and second metal plates and a beam chord permanently clamped between the plates at a force that precludes or reduces delamination of the beam chord under service conditions, the beam chord having a longitudinal axis and comprising a plurality of plies of reinforcing fibers extending in an x-y plane, wherein the reinforcing fibers of at least 60 percent of the plies of the plurality of plies are oriented at ±
- α
degrees with respect to the longitudinal axis, where α
is from 2 to 12 degrees.
- α
Specification