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US 2011/0300343 A1Published application
Composite Truss Panel Having Fluted Core
AssigneeThe Boeing Company
InventorsDouglas A. McCarville, Juan C. Guzman, Michael L. Hand, Michael J. Robinson
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Abstract
A composite truss structure employs a sandwich-in-sandwich construction in which a composite fluted core is sandwiched between two facesheets, and at least one structural foam stiffener is sandwiched within the core or between the facesheets and/or the core.
Claims14
A composite truss panel, comprising:
- a first and a second composite facesheets;
- a fluted core sandwiched between the first and second facesheets;
- and
- at least one stiffener between the first and second facesheets formed of low density structural foam.
1 more element
A composite truss panel, comprising:
- a first sandwich including first and second facesheets and a fluted core sandwiched between and joined to the first and second facesheets;
- and
- a second sandwich disposed within the first sandwich, the second sandwich including at least one structural foam stiffener.
A composite truss panel, comprising:
- first and second composite facesheets;
- a fluted core sandwiched between the first and second facesheets, the fluted core including a plurality of composite flutes, the flutes being generally hollow and having walls extending traverse to the first and second facesheets;
- and
- low density structural foam stiffeners between the walls of adjacent ones of the flutes;
- and,
- a low density structural foam stiffener between the fluted core and at least one of the first and second facesheets.
3 more elements
Dependencies are inferred from the claim text.