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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Building an ICME Infrastructure: Developing Tools that Integrate Across Length and Time Scales to Accelerate Materials Design
Presentation Title Gaps in Multiscale Modeling to Address Mechanical Properties of Metal Alloys
Author(s) David L McDowell
On-Site Speaker (Planned) David L McDowell
Abstract Scope Metallic materials have a hierarchy of structures ranging in scale from nm to mm. Corresponding model constructs range from coarse-grained atomistics, microscopic phase field models, and dislocation field models, to discrete dislocation dynamics, statistical continuum dislocation models, and on up to mesoscale generalized continuum models of gradient, micropolar or micromorphic type, as well as local continuum crystal plasticity that can be applied over many grains. We discuss concurrent and hierarchical multiscale model transitions in space and time, distinguishing between coarse-graining and spatial domain decomposition approaches for lower scale models, as well as model order reduction for mesoscale levels and higher. In terms of bridging length and time scales and modeling formalisms, the practical importance of two-scale transitions between models of differing fidelity and/or resolution is emphasized, with consideration of uncertainty. We summarize some of the long-standing gaps in modeling dislocation plasticity in crystals and polycrystals.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

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Challenges in Multiscale Modeling of Emergent Phenomena in Solid Mechanics
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Coupled Crystal Plasticity-phase Field Method to Model Crack Initiation and Propagation in Ti64 Alloys.
Data Science and Informatics: Key Integrators of Multiscale Experiments and Multiscale Models in ICME
Differences between Measured and Simulated Elastic Strain States Using High Energy X-ray Diffraction in Titanium Using Crystal Plasticity Models
Enabling Connection of Online Simulation Tools and Databases: nanoHUB.org
Gaps in Multiscale Modeling to Address Mechanical Properties of Metal Alloys
Integrated Computational Materials Engineering (ICME) in Support of Business Decision Making and Open Innovation Through Interdisciplinary Collaboration.
Integrating Materials Microstructure Information into Engineering Design and Manufacturing
Integration of ICME Tools for the Design of Co-base Single Crystals
Making Materials Science Resources Discoverable and Accessible with the NIST Materials Resource Registry
Modeling Plastic Anisotropy of Textured Polycrystalline Materials
Modeling the Microstructural Evolution and Yield Strength in an Advanced Die Casting Aluminum Alloy
Need for Uncertainty Quantification in Multiscale Materials Modeling Need for Uncertainty Quantification in Multiscale Materials Modeling
Prediction of Hole Expansion Ratio Using Microstructure Based Dual-scale Finite Element Approach
Quantitative Approaches to Identification and Characterization of Microtexture Regions in Titanium Alloys
TAMMAL : High throughput Materials Design Suite
TESSRA: A Cloud-based Multiscale Platform for Modern Alloys Design
The Materials Commons: A Collaboration Platform and Information Repository for the Global Materials Community
The PRISMS Framework: An Integrated Multi-scale Capability for Accelerated Predictive Materials Science
Uncertainty Quantification and Propagation through CALPHAD Thermodynamics and Integrated Computational Materials Engineering (ICME)
Yield Stress, Proportional Limit: Do They Exist?

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