|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Mechanical Behavior at the Nanoscale IV
||Numerical Modeling and Experiments of the Mechanical Behavior of Porous Solids for Large Relative Densities
||Timothy Ibru, Maximilian Busche, Vadim Roytershteyn, Garritt Tucker, Antonia Antoniou
|On-Site Speaker (Planned)
Physical properties of porous solids such as strength, modulus scale with the relative solid fraction e.g. relative density. A typical dimensional analysis for the mechanical properties of porous metals proceeds by understanding the dominant mode of deformation of a representative subset of the porous solid. In this fashion, porous metals are known to deform by ligament bending in the regime of 3-30% relative density. At very high levels of relative density, the deformation is dominated by ligament yielding in compression or tension but the precise transition from bending to compression dominated is not well understood. Using a combination of macroscopic testing of computer generated porous metal realizations, we demonstrate scaling of modulus and strength as a function of relative density. Some of the realizations are closely related to nanoporous metals using molecular dynamics (MD) simulations.
||Planned: Supplemental Proceedings volume