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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 Prediction of Hole Expansion Ratio Using Microstructure Based Dual-scale Finite Element Approach
Author(s) Heung Nam Han, Siwook Park, Jinwook Jung, Sung Il Kim, Seok-Jong Seo, Myoung-Gyu Lee
On-Site Speaker (Planned) Heung Nam Han
Abstract Scope Advanced high strength steels (AHSS) with complex microstructures require predictive techniques for material formability in automotive component design. In this study, we used a dual-scale finite element method to predict the Hole Expansion Ratio (HER) of multiphase steels. First, a punching step followed by the hole expansion simulation was performed in macro-scale. Then, the deformation history of each element in the macro-model was used as the boundary condition for a representative volume element (RVE) at micro-scale, which was constructed by EBSD measurement. The mechanical properties of constituent phases were identified by nanoindentation test and optimization. The local strain distribution among different phases was compared with in-situ tensile test results and the individual properties of each phase obtained through the nanoindentation were verified. We proposed a microstructure-based finite element approach combined with damage mechanics. Finally, the experimentally observed hole expanding formability could be explained using the proposed dual-scale finite element approach.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

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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
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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
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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)
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