| 摘要 |
A raised and recessed sheet material having extremely high stiffness, and useful vehicle panel and laminated structure using the same. The surface of the sheet is formed by a plurality of squares arranged in two mutually perpendicular directions, and has a raised and recessed pattern. A basic configuration A, where first regions M and a Z-shaped second region N are formed in the square, and basic configurations B to D derived from the basic configuration A are butted together at their peripheral edges such that first regions M having those peripheral edges are butted together and the second regions N having those peripheral edges are butted together. The raised and recessed pattern is formed by upwardly raising the first regions M and downwardly recessing the second regions N, or upwardly raising or downwardly recessing either one or both of the first and second regions M and N. |
