|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||ICME Infrastructure Development for Accelerated Materials Design: Data Repositories, Informatics, and Computational Tools
||Microstructural Modeling of Dynamic Intergranular and Transgranular Fracture Modes in Crystalline Alloys
||S. Ziaei, Mohammed Zikry
|On-Site Speaker (Planned)
An integrated approach crystalline plasticity and fracture approach is used to identify dominant mechanisms related to material behavior at different scales. A dislocation-density based multiple slip crystalline plasticity formulation and a new computational fracture approach have been used to investigate and predict intergranular and transgranular dynamic fracture in hexagonal cubic packed (h.c.p.) materials with a focus on irradiated alloys subjected to larges changes in strains, strain-rates, and temperatures. This validated predictive framework has been used to understand and predict the interrelated effects of dislocation-density interactions, generation, and recovery on crack nucleation and propagation. The fracture approach accounts for crack blunting, branching, and deflection in materials with microstructural characteristics that include twins, hydrides, and precipitates.
||Planned: A print-only volume