Stiffening element carbon-glass layered foot section

Details Stiffening element carbon-glass layered foot section Stiffening element carbon-glass layered foot section

2011-06-21

2011-06-21

Lillis, Eileen (Department: 3635)

Aeronautics and astronautics

Aircraft structure

Details

C244S119000, C244S131000, C052S847000

Reexamination Certificate

active

07963483

ABSTRACT:
The present invention provides a stiffening element for stiffening a step-like substructure, in particular in an aircraft or spacecraft, having a foot section which is composed of a fiber composite material and is shaped in the form of a step such that it essentially fills the substructure. A method is also provided for production of a stiffening element for stiffening of a step-like substructure in an aircraft or spacecraft, according to which a profile part with a foot section which is composed of a carbon-fiber-reinforced plastic is provided, at least one layer of a glass-fiber-reinforced plastic is laminated onto the foot section, and the glass-fiber-reinforced plastic is milled corresponding to a step-like shape which essentially fills the substructure.

REFERENCES:
patent: 5242523 (1993-09-01), Willden et al.
patent: 5951800 (1999-09-01), Pettit
patent: 6730184 (2004-05-01), Kondo et al.
Middleton, Donald H. (Hrsg.): “Composite materials in aircraft structures”, Auflage, Harlow: Longman, 1990, pp. 229, 235, ISBN: 0-582-01712-2.
Knauer, Berthold (Hrsg.): “Polymertechnik und Lelchtbau”, Auflage Hildburghausen: Verl. Frankenschwelle, 2006, pp. 58-59, ISBN: 3-86180-190-6.

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