초록 ▼

The composite structural panel has bottom, top and edge layers which enclose a primary core. The core provides additional structural strength to the panel. The edge layer forms a desired panel edge angle of approximately 20°to 45°. The primary core is trimmed at an angle of approximately one-half th

The composite structural panel has bottom, top and edge layers which enclose a primary core. The core provides additional structural strength to the panel. The edge layer forms a desired panel edge angle of approximately 20°to 45°. The primary core is trimmed at an angle of approximately one-half the desired edge angle to form a first pressure reaction surface. A peripheral core is positioned on the tapered portion of the primary core so that the axis of the peripheral core is perpendicular to the first pressure reaction surface. The peripheral core is trimmed to form a second pressure reaction surface beneath the edge of the panel. The structure is lightweight and resists deformation of the panel edge when the panel is cured under elevated pressure in an autoclave.

대표청구항 ▼

A core structure for reducing autoclave pressure induced edge failure of structural panels of the type having a bottom layer, a top layer, and edge layer and a primary core therebetween, wherein the primary core has substantial compression resistance along a primary core axis comprising: a primary c

A core structure for reducing autoclave pressure induced edge failure of structural panels of the type having a bottom layer, a top layer, and edge layer and a primary core therebetween, wherein the primary core has substantial compression resistance along a primary core axis comprising: a primary core having substantial compression resistance along a primary core axis, the primary core axis being positioned substantially perpendicular to a panel bottom layer, the primary core having a peripheral edge defining a first peripheral pressure surface at a first acute angle with respect to the primary core axis; and a peripheral core having substantial structural compression resistance along a peripheral core axis, the peripheral core axis being positioned substantially perpendicular to the first peripheral pressure surface, the peripheral core having a second peripheral pressure surface at a second acute angle with respect to the peripheral core axis, whereby a panel having the primary and peripheral cores can be exposed to elevated pressures during curing without substantial deformation of the cores.