Energy absorbing composite aircraft structure

Details Energy absorbing composite aircraft structure Energy absorbing composite aircraft structure

1983-09-09

1986-06-10

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft structure

244 1711, 244119, 188375, B64C 106

Patent

active

045938709

ABSTRACT:
An energy absorber is provided. The energy absorber includes a thin panel (78) formed of composite materials (84) for reacting compression forces in the plane of the panel (78) between two opposed edges thereof. The panel (78) is constructed to resist overall bending failure when force is applied to the opposite edges. The energy absorber further includes force receiving structure (90, 92) for receiving forces directly to one of the edges and for receiving forces to the opposite edge of the panel (78) to initiate local folding parallel to the other edge for progressing crushing and local folding of the panel (78).

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"Composites May Enable Chopper to Survive Crashes", Machine Design, Sep. 9, 1982 at pp. 58-59.
Ford et al., "Advanced Composite Airframe Program", vol. 1-Part 1, pp. 45-82, USAAVRADCOM-TR-80-D-36A, Dec. 1981, pp. 155-190.
"Crash Survival Design Guide", USAAMRDL-TR-71-22, Oct. 1971, pp. 81-88.

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