Showing papers on "Sandwich panel published in 1973"

Sandwich core panel having cured face sheets and a core formed with projecting modes

Abstract: The core of a sandwich panel is formed with projecting nodes, the faces of the nodes being bonded to the face sheets of the panel. The node faces have the central portions thereof excised such that the remaining portion of these faces form flanges. These flanges are bent away from the center plane of the core and are shaped for optimum attachment to the curved panel face sheets without the need for crippling or deforming the node body and so that they enable the formation of a good bonded or brazed joint between the node faces and the face sheets.

Sandwich panel having cellular core structure with reinforcing elements

Abstract: A sandwich panel is formed with a cellular core structure having nodes which project in opposite directions from a midplane, the core structure being sandwiched between a pair of face sheets, with the apices of the nodes abutting against the face sheets. Reinforcing elements in the form of linear bar elements are bonded to the sides of a line of nodes and the panel faces against which the apices of these nodes abut, and in certain embodiments, also to the midplane portion of the core. These reinforcing elements operate to resist buckling in long span flexure and to better handle shear loads in short span flexure, thus substantially improving the structural characteristics of the panel.

Building sandwich panel - comprising a foam core, inter corrugated laminate and top laminate

Abstract: Building sandwich panel comprises a foam (e.g. polyurethane) core between 2 corrugated laminae, the core completely filling the space between the laminae including the space between individual corrugations. The laminae may be provided, on the (outer) sides remote from the core with flat top laminae which are in form contact with the apices of the corrugations. The inter. laminae and/or the top laminae may consist of paper, metal or plastic. The polyurethane foam may contain a flame-retardant. Used in mfre. of structural elements combining light weight with superior mech. strength.