Patent ID: 6110567
Filing Date: 2000-08-29
Classification: B32B,E04C,Y10T

Abstract:
A composite structural panel, comprising:a single face sheet;a stiffener grid, the stiffener grid comprising a first elongated grid channel extending in a first direction of elongation and a second elongated grid channel extending in a second direction of elongation from a nodal intersection, each grid channel comprising a hollow channel section includingtwo shear walls, each shear wall having a foot and a top, each shear wall being formed of a shear wall composite material having bidirectional shear wall fiber reinforcement embedded in a shear wall matrix, anda cap extending between the top of each of the two shear walls, the cap comprising a cap composite material having cap fiber reinforcement embedded in a cap matrix, at least some of the cap fiber reinforcement extending parallel to the direction of elongation of the grid channel; anda bonding layer between the face sheet and the foot of each of the two shear walls of each grid channel.