About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Real Time Imaging
|
Presentation Title |
Mechanics of Architected Materials through the Lens of In Situ Characterization |
Author(s) |
Somayajulu Dhulipala, Rachel Sun, Thomas Butruille, Yun Kai, Thomas Pezeril, Carlos M. Portela |
On-Site Speaker (Planned) |
Carlos M. Portela |
Abstract Scope |
Characterization of architected materials has relied on stress-strain curves which have proven useful to determine effective mechanical properties. However, only in situ observation of these materials has uncovered the complex mechanisms that lead to said responses. As interest in their extreme-condition responses grows, the requirement for nanosecond temporal resolution in imaging techniques adds another challenge.
We present our efforts leveraging in situ characterization with high spatial and temporal resolution to characterize architected materials across various regimes. Quasi-statically, we present in situ nanomechanical characterization on two types of architected materials, where visualization evidences surface-stiffening and nano-shell-buckling responses. Dynamically, we present microparticle impact experiments on architected materials, where ultra-high-speed imaging sheds light on energy dissipation mechanisms. Finally, we present efforts employing a custom laser-ultrasonics characterization technique to obtain nanometer and nanosecond vibrational signatures of 3D micro-architected materials, providing a unique non-destructive characterization route for dynamic mechanical properties and structural health monitoring. |
Proceedings Inclusion? |
Planned: |