| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior at the Nanoscale V
|
| Presentation Title |
Investigating the Mechanical Behavior of Nano-architected Materials via Multiscale Discrete Defect Element Method |
| Author(s) |
Phu Cuong Nguyen, Ill Ryu |
| On-Site Speaker (Planned) |
Phu Cuong Nguyen |
| Abstract Scope |
The multiscale defect element method (DDEM) has developed to couple conventional continuum crystal plasticity finite element (CPFEM) with a discrete defect (DD) modeling. The multiscale model could account for complex multi-physical phenomena, which would play an important role in obtaining a fundamental understanding of deformation mechanism at small scale. Using the model, we investigate the mechanical behavior of nano-architected materials. The mechanical response of nanoscale octet-truss lattice structures under compression obtained from this model is compared with experimental results and a scaling model for the strength of the nanolattice structures is developed. The multiscale model will expand our knowledge on governing mechanism of plasticity controlled by defects in crystalline materials. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |