Patent ID: 9616988
Date: 2017-04-11
CPC Classifications: B64C

Claim:
1. An energy-absorbing (EA) beam member for use in an aircraft having a fuselage and a floor, the EA beam member comprising: a cell core structure having cell walls, a length, a width, and a depth, wherein the cell walls collectively define a repeating conusoidal pattern of alternating respective smaller and larger first and second radii along the length of the cell core structure, and wherein the cell walls are angled away from a forward direction of flight of the aircraft at a calibrated lean angle; a first plate affixed to a first edge of the cell core structure along the length of the cell core structure, wherein the first plate is substantially flat such that the first plate is attachable to the floor; and a second plate affixed to a second edge of the cell core structure along the length of the cell core structure opposite the first edge.