| abstract |
A material element has a pair of cover layers, a plurality of first strip components, and a plurality of second strip components. The first strip components are located between cover layers, and the first strip components are secured to cover layers. The second strip components are located between cover layers. positioned between the first strip components, and are unsecured to the cover layers. In some configurations, the thicknesses of the strip components may be different and edges of the strip components may have a non-linear configuration. |