| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Deformation and Transitions at Grain Boundaries VII
|
| Presentation Title |
A Crystal Plasticity Model with Enhanced Interface Physics |
| Author(s) |
Jason Mayeur |
| On-Site Speaker (Planned) |
Jason Mayeur |
| Abstract Scope |
The thermomechanical response of nanostructured metals is governed by interface-dominated deformation mechanisms, which result in markedly different behavior than their conventional counterparts whose behavior is controlled by bulk dislocation interactions. Typical crystal plasticity models do not account for deformation mechanisms associated with material interfaces. In this talk, we present a modeling framework that accounts for the competition between plastically driven lattice reorientation and the energetic barrier associated with the resulting change in interface character. The model accounts for dissipative interface mechanisms in a thermodynamically-consistent manner. A finite element formulation is developed and representative results showing the transition from bulk-dominated to interface-dominated plasticity are given. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |