Energy-Absorbing Beam Member

An energy-absorbing (EA) beam member and having a cell core structure is positioned in an aircraft fuselage proximate to the floor of the aircraft. The cell core structure has a length oriented along a width of the fuselage, a width oriented along a length of the fuselage, and a depth extending away...

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Bibliographic Details
Published inNASA Center for AeroSpace Information (CASI). Misc. Resources
Main Author Littell, Justin D
Format Web Resource
LanguageEnglish
Published Hampton NASA/Langley Research Center 11.04.2017
Subjects
Aircraft
Aircraft components
Airframes
Clothing industry
Energy absorption
Floors
Fuselages
Lean angle
Plates (structural members)
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Summary:An energy-absorbing (EA) beam member and having a cell core structure is positioned in an aircraft fuselage proximate to the floor of the aircraft. The cell core structure has a length oriented along a width of the fuselage, a width oriented along a length of the fuselage, and a depth extending away from the floor. The cell core structure also includes cell walls that collectively define a repeating conusoidal pattern of alternating respective larger and smaller first and second radii along the length of the cell core structure. The cell walls slope away from a direction of flight of the aircraft at a calibrated lean angle. An EA beam member may include the cell core structure and first and second plates along the length of the cell core structure on opposite edges of the cell material.
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