About this Abstract |
Meeting |
12th International Conference on Magnesium Alloys and their Applications (Mg2021)
|
Symposium
|
12th International Conference on Magnesium Alloys and their Applications (Mg 2021)
|
Presentation Title |
Higher-order Gradient Crystal Plasticity Analysis of LPSO-structured Magnesium Using Meshfree Approach |
Author(s) |
Yuichi Tadano, Daijiro Kamura |
On-Site Speaker (Planned) |
Yuichi Tadano |
Abstract Scope |
Magnesium alloys with the long period stacking order (LPSO) structure show the superior strength and are expected as the next generation structural material. In the LPSO materials, kink deformation is an important deformation mechanism as well as slip deformation in the crystalline scale and may be the origin of the material strengthening. In this study, a higher-order gradient crystal plasticity analysis is conducted to evaluate the stress field around kink band to understand the strengthening mechanism due to kink. The finite element method sometimes provides an improper solution in the higher-order gradient crystal plasticity analysis; therefore, the reproducing kernel particle method, which is a kind of meshfree method, is introduced into the higher-order gradient crystal plasticity analysis. A numerical analysis of a specimen with kind band is demonstrated using the present method, and it is shown that kind band increases the macroscopic flow stress of material. |
Proceedings Inclusion? |
Planned: At-meeting proceedings |