MODELING ASPECTS REGARDING TO THE SOLIDITY OF CELLULAR METALS UNDER MULTI-AXIAL STRESSES

摘要

Metallic hollow sphere structures (MHSS) are a new group of cellular metals characterized by easily reproducible geometry and therefore consistent mechanical and physical properties. A new powder metallurgy based on manufacturing process enables the production of metallic hollow spheres of defined geometry. This technology brings a significant reduction in costsin comparison to earlier applied galvanicmethods and all materials suitable forsintering can be applied. The paper presentssome theoretical aspects regarding toexemplarily mechanical properties of hollowsphere structures in different configurationsand gives some proposals for modelingaspects to practical applications of this new engineering materials.