Abstract: The invention pertains to the design of polymer or molded part that can be used for pallets or decking material. A pallet having a plurality of pallet sections each composed of interlocking tubular elements defined by top and bottom surfaces. The interlocking find overlapping sections provide a continuous surface in immovable assembly. The edge of the top surface of one tubular section has a flange that protrudes from it that fits in a corresponding groove of an adjacent tubular section so as to provide a flat connected surface. At least two tubular elements are located next to one another with collinear edges and are oriented in the same direction to support loads on top and bottom surfaces and resist bending. The modular design of the tubular sections allows for the continuous structure to be divided into several regions for ease of repair or serviceability.

Abstract: An energy absorbing device includes an energy absorber element having a plurality of elongated hollow hexagonal cells. The cells are arranged in a block shape with first and second layers interconnected by an intermediate plate. The intermediate plate closes adjacent ends of the first and second layers and forms three-sided pyramidal structures which project into each individual cell of the first and second layers. Each pyramidal structure has an apex located near the center of each cell. The energy absorber element is deformable under impact loading conditions to absorb and dissipate energy. Upon the removal of the impact load the energy absorber element returns to its original shape.