Modeling of effective elastic constants and fracture toughness in metal-ceramic composites with interpenetrating microstructure

摘要

The paper is focused on modeling of the overall elastic properties and crack toughening mechanism by bridging in metal-ceramic interpenetrating phase composites (IPC).The Tuchinskii-Feng analytical model (Feng 2004) especially devised for IPC microstructures is further developed.Numerical FEM models of the effective elastic constants are implemented for the simplified 3-D cross microstructure and real microstructures based on micro-CT scans.