Composite skin and stringer structure and method for forming the same
First Claim
1. An aerospace vehicle comprising:
- a fiber-reinforced composite stringer having reinforcing fibers positioned in a plurality of adjacent plies, a first one of the plies having reinforcing fibers oriented at a first non-zero angle between approximately zero degrees to twenty degrees relative to a direction of loading, a second one of the plies having reinforcing fibers oriented at about +65 degrees relative to the loading direction, and a third one of the plies having reinforcing fibers oriented at about −
65 degrees relative to the loading direction; and
a skin member secured to a flange of the stringer.
1 Assignment
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Accused Products
Abstract
Composite stringer and skin structures and methods for forming the same are disclosed. In one embodiment, a composite stringer and skin structure includes a polymer-based elongated stringer portion having reinforcing fibers positioned in a plurality of adjacent plies, a first portion of the reinforcing fibers being oriented at a relatively shallow angle relative to a selected reference direction, and a second portion of the reinforcing fibers being oriented at a relatively broad angle relative to the selected reference direction. A polymer-based and fiber reinforced skin member adjoins the stringer portion, and an adhesive material is interposed between the stringer portion and the skin member.
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Citations
16 Claims
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1. An aerospace vehicle comprising:
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a fiber-reinforced composite stringer having reinforcing fibers positioned in a plurality of adjacent plies, a first one of the plies having reinforcing fibers oriented at a first non-zero angle between approximately zero degrees to twenty degrees relative to a direction of loading, a second one of the plies having reinforcing fibers oriented at about +65 degrees relative to the loading direction, and a third one of the plies having reinforcing fibers oriented at about −
65 degrees relative to the loading direction; anda skin member secured to a flange of the stringer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A stringer for an aerospace vehicle, the stringer comprising first and second flanges and a web between the flanges, at least one of the flanges and web including first, second and third plies of reinforcing fibers, the fibers in the first ply oriented at a non-zero angle between 0 and 20 degrees with respect to an axis of loading, the fibers in the second and third plies oriented at an angle of about +65 degrees and −
- 65 degrees with respect to the axis.
- View Dependent Claims (15, 16)
Specification