Developing Physically-based Three Dimensional Polycrystalline Microstructures
Abstract not provided.
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Jump to search filtersModeling the Effects of Microstructure on Localization in Polycrystalline Stainless Steel
Abstract not provided.
Hexahedral Mesh Generation for Computational Materials Modeling
Procedia Engineering
A parallel, adaptive overlay grid procedure is proposed for use in generating all-hex meshes for stochastic (SVE) and representative (RVE) volume elements in computational materials modeling. The mesh generation process is outlined including several new advancements such as data filtering to improve mesh quality from voxelated and 3D image sources, improvements to the primal contouring method for constructing material interfaces and pillowing to improve mesh quality at boundaries. We show specific examples in crystal plasticity and syntactic foam modeling that have benefitted from the proposed mesh generation procedure and illustrate results of the procedure with several practical mesh examples.
Concurrent multiscale modeling of microstructural effects on localization behavior in finite deformation solid mechanics
Abstract not provided.
Concurrent Multiscale Modeling of Microstructural Effects on Localization Behavior in Finite Deformation Solid Mechanics
Abstract not provided.
Concurrent Multiscale Modeling of Microstructural Effects on Localization Behavior in Finite Deformation Solid Mechanics
Abstract not provided.
Developing strong concurrent multiphysics multiscale coupling to understand the impact of microstructural mechanisms on the structural scale
Abstract not provided.
Developing Physically-based Three Dimensional Microstructures: Bridging Phase Field and Crystal Plasticity Models
Abstract not provided.
Developing strong concurrent multiphysics multiscale coupling to understand the impact of microstructural mechanisms on the structural scale
Abstract not provided.
Developing a physically-based tantalum strength model: Integrating fundamental concepts with macro scale models
Abstract not provided.
Hex Meshing for Microstructures
Abstract not provided.
Creating physically-based three-dimensional microstructures: Bridging phase-field and crystal plasticity models
In order to better incorporate microstructures in continuum scale models, we use a novel finite element (FE) meshing technique to generate three-dimensional polycrystalline aggregates from a phase field grain growth model of grain microstructures. The proposed meshing technique creates hexahedral FE meshes that capture smooth interfaces between adjacent grains. Three dimensional realizations of grain microstructures from the phase field model are used in crystal plasticity-finite element (CP-FE) simulations of polycrystalline a -iron. We show that the interface conformal meshes significantly reduce artificial stress localizations in voxelated meshes that exhibit the so-called "wedding cake" interfaces. This framework provides a direct link between two mesoscale models - phase field and crystal plasticity - and for the first time allows mechanics simulations of polycrystalline materials using three-dimensional hexahedral finite element meshes with realistic topological features.
3D microstructure modeling using phase field grain growth model
Abstract not provided.
Statistical Descriptions of Defect-Mediated Structure-Properties Relationships in Metals
Abstract not provided.
Complexity Isn?t Necessarily Free: Opportunities and Challenges in Additive Manufacturing
Abstract not provided.
Complexity isn't necessarily free: Opportunities and challenges in additive manufacturing
Proceedings - ASPE 2015 Spring Topical Meeting: Achieving Precision Tolerances in Additive Manufacturing
Abstract not provided.
Results 26–41 of 41