|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Environmentally Assisted Cracking: Theory and Practice
||Fully coupled mechano-electrochemical microstructure-dependent fracture model of Mg alloys
||Eugen Gazenbiller, Aravinth Ravikumar, Mohamadreza Shariati, Benjamin Uekermann, Wolfgang Weber, Daniel Höche
|On-Site Speaker (Planned)
Material components in corrosive environment are often exposed to external stress. We present a fully coupled numerical model for simulation of corrosion and fracture of Mg alloys under static or dynamic stress on microscale. The model is based on the Nernst-Planck-Poisson equation system in the electrolyte and the Cahn-Hilliard equation for interface tracking. Effect of corrosion product deposition, pH and selected homogeneous reactions is considered in liquid phase whereas conditions for inter- and intragranular corrosion are addressed in the solid phase. The entire workflow (from microstructure generation to PDE solution) relies only on open-source libraries (neper, gmsh, FENiCS, nutils, preCICE) which enables easy model implementation by every interested researcher, irrespective of the institution’s financial basis.
||Computational Materials Science & Engineering, Magnesium, Modeling and Simulation