초록 ▼

A formable honeycomb panel is disclosed that comprises a core layer and two skin panels of sheet material bonded to opposite sides of the core layer. At least one of the skin panels is porous and has an effective stiffness that is substantially less than the stiffness of a solid sheet of material of

A formable honeycomb panel is disclosed that comprises a core layer and two skin panels of sheet material bonded to opposite sides of the core layer. At least one of the skin panels is porous and has an effective stiffness that is substantially less than the stiffness of a solid sheet of material of the same thickness. The stiffness of the porous skin panel is sufficiently low so that bending of the honeycomb panel is accommodated primarily by deformation of the porous skin panel before the core layer collapses or the adhesive bonds between the core layer and the skin panels fail.

대표청구항 ▼

A formable honeycomb panel comprising: a core layer having an open cellular structure with the open cells thereof extending transversely of the core layer, and first and second skin panels of sheet material bonded flat to opposite sides of said core layer, wherein said first skin panel is composed o

A formable honeycomb panel comprising: a core layer having an open cellular structure with the open cells thereof extending transversely of the core layer, and first and second skin panels of sheet material bonded flat to opposite sides of said core layer, wherein said first skin panel is composed of a sheet of material having a plurality of shaped openings extending through the thickness thereof so that said first skin panel has an effective stiffness that is substantially less than the stiffness of a solid sheet of material of the same overall thickness, wherein said skin panels are first bonded to said core layer to produce a flat honeycomb panel that is thereafter formed into a curved structure by bending said honeycomb panel, and wherein the stiffness of said first skin panel is low enough so that a bending load applied to the honeycomb panel sufficient to permanently deform the first skin panel is less than a bending load sufficient to collapse the core layer or to shear the bonds between the core layer and the skin panels.