| Abstract Scope |
Many studies have extensively investigated various microstructural features to understand heterogeneous microstructure effects with mechanical responses. In this study, a representative volume element modeling approach was used to control specific microstructure features accurately beyond the experimental difficulties. In particular, the deformation behavior of the core-shell structure was clearly visualized using the finite element method with the proposed dislocation-based constitutive model considering the evolution of geometrically necessary dislocations. From these findings, we suggest that the optimal heterogeneous microstructure should be designed based on the deformation behavior with respect to the geometry, size, and shape of soft and hard domains. |