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Park, Sung Soo
Metal Alloy Design (MADe) Lab
Research Interests
  • Metals and alloys, materials properties (mechanical/physical/electrochemical/functional), biomedical implants, metals corrosion

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Simulation of stress concentration in Mg alloys using the crystal plasticity finite element method

Cited 33 times inthomson ciCited 34 times inthomson ci
Title
Simulation of stress concentration in Mg alloys using the crystal plasticity finite element method
Author
Choi, S. -H.Kim, D. H.Park, Sung SooYou, B. S.
Keywords
Crystal plasticity; Finite element; Stress concentration; Texture; Twinning
Issue Date
2010-01
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
ACTA MATERIALIA, v.58, no.1, pp.320 - 329
Abstract
A crystal plasticity finite element method (CPFEM), considering both crystallographic slip and deformation twinning, was developed to simulate the spatial stress concentration in AZ31 Mg alloys during in-plane compression. A predominant twin reorientation (PTR) model was successfully implemented to capture grain reorientation due to deformation twinning in twin-dominated deformation. By using the direct mapping technique for electron backscatter diffraction (EBSD) data, CPFEM can capture the heterogeneity of stress concentration at the grain boundaries in AZ31 Mg alloys during in-plane compression. The model demonstrated that deformation twinning enhances the local stress concentration at the grain boundaries between untwinned and twinned grains.
URI
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DOI
10.1016/j.actamat.2009.09.010
ISSN
1359-6454
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MSE_Journal Papers
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