Multi-purpose load-bearing structure has perforated substrate on load-bearing core under coating of low-density or modulus of elasticity

摘要

A hollow component has a load-bearing surface (1, 5) with a coating of material whose density and/or modulus of elasticity much is less e.g. one fifth to one thousandth than that of the load-bearing surface. The load-bearing surface is perforated, an open or closed grid system. The load-bearing surface is a complex curve.