Dislocation-based crystal plasticity FE analysis for kink band formation in Mg-based LPSO phase considering higher-order stress
| Autor: | Kazuyuki Shizawa, Yuichi Kimura, Ryo Ueta |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Condensed matter physics Stacking 02 engineering and technology Slip (materials science) Disclination Plasticity 021001 nanoscience & nanotechnology 01 natural sciences Industrial and Manufacturing Engineering Finite element method Artificial Intelligence 0103 physical sciences Quadrupole Magnesium alloy 0210 nano-technology Single crystal |
| Zdroj: | Procedia Manufacturing. 15:1825-1832 |
| ISSN: | 2351-9789 |
| Popis: | An FE analysis has been performed for a single crystal of long-period stacking ordered phase on the basis of the dislocation-based crystal plasticity model considering higher-order stress. The mesh dependence on the kink band formation has been discussed from the viewpoint of the strain gradient and size effect. Then, it is shown that the mesh dependence of kink deformation in the FE analysis can be removed even when the scale ratio is relatively small. Moreover, it is indicated that the disclination quadrupole structure in the kink band can be expressed qualitatively by use of the incompatibility of crystal slip. |
| Databáze: | OpenAIRE |
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