Abstract: The present invention relates to a composite honeycomb sandwich panel equipped with a composite rail aluminum I-shaped side insert, and more specifically, to an improved structure of a hybrid composite sandwich panel having a laminated composite skin and an aluminum honeycomb core which is mechanically improved in terms of assembly, strength and weight. The composite honeycomb sandwich panel includes: a planar honeycomb core; a composite rail which is wrapped around the periphery of the honeycomb core and has therein a hollow space that is open on opposite sides thereof; an I-shaped center rail insert which is fitted into the hollow space of the composite rail so that the sandwich panel is connected to an adjacent sandwich panel by bolting through the I-shaped center rail insert; and laminated composite skins which cover upper and lower surfaces of the honeycomb core having the composite rail wrapped around.

Abstract: The present invention relates to a composite honeycomb sandwich panel equipped with a composite rail aluminum I-shaped side insert, and more specifically, to an improved structure of a hybrid composite sandwich panel having a laminated composite skin and an aluminum honeycomb core which is mechanically improved in terms of assembly, strength and weight. The composite honeycomb sandwich panel includes: a planar honeycomb core; a composite rail which is wrapped around the periphery of the honeycomb core and has therein a hollow space that is open on opposite sides thereof; an I-shaped center rail insert which is fitted into the hollow space of the composite rail so that the sandwich panel is connected to an adjacent sandwich panel by bolting through the I-shaped center rail insert; and laminated composite skins which cover upper and lower surfaces of the honeycomb core having the composite rail wrapped around.