About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Fatigue in Materials: Fundamentals, Multiscale Characterizations and Computational Modeling
|
Presentation Title |
Micromechanical Modeling of Copper under Very High Cycle Fatigue |
Author(s) |
Vahid Tari, Michael Fitzka, Herwig Mayer, Jason W. Carroll |
On-Site Speaker (Planned) |
Vahid Tari |
Abstract Scope |
Copper has received industrial attention as a fuse material due to its high conductivity. Fuses in new generation of electric vehicles experience vary random loads, therefore fuse materials need to show very good fatigue properties. Ultrasonic fatigue techniques are particularly useful for rapid qualification to examine the fuse material responses at very high frequency (20kHz). In this work, we employed a crystal plasticity framework to predict local heterogeneities in microstructure during ultrasonic fatigue tests, which are related to fatigue crack initiation. These modeling results can be used not only in prediction of hot spot regions causing fatigue damage, but also in microstructure optimization of fuse materials. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |