Sandwiched structural panel having a bi-directional core structure

A structural panel assembly having first and second generally planar outer side wall members disposed in a spaced apart, parallel and opposing relationship, and a bi-directional core structure sandwiched between said first and second outer side wall members and having first and second opposite sides respectively secured to said first and second outer side wall members, said bi-directional core structure comprising:

• first and second series of elongated rectangular strip members each transversely bent to form, along its length, alternating crests and troughs each defined by a longitudinally spaced pair of opposite side walls transverse to the length of the strip member, and an outer end wall transverse to the opposite strip member side walls,
• the strip members in each of said first and second series thereof being disposed in a longitudinally parallel, side edge-by-side edge array in which, for each laterally adjacent pair of strip members, the crests of one strip member are longitudinally aligned with the troughs of the other strip member, and
• said first and second series of strip members being transversely interwoven with one another in a manner such that the outer crest end walls of the strip members in said second series thereof overlie and oppose the outer trough end walls of the strip members in said first series thereof, the outer trough end walls of the strip members in said second series thereof underlie and oppose the outer crest end walls of the strip members in said first series thereof, the outer crest end walls of the strip members in said first and second series thereof lie generally in a first plane and combinatively define said first side of said bi-directional core structure, and the outer trough end walls of the strip members in said first and second series thereof lie generally in a second plane and combinatively define said second side of said bi-directional core structure.