About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
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| Symposium
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Material Responses Investigated Through Novel In-Situ Experiments and Modeling
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| Presentation Title |
In-Situ Experiments and Simulation of Damping in Micro/Nano Pillar Arrays |
| Author(s) |
Ander Abadín, José F. Gómez-Cortés, Isabel Ruiz-Larrea, Emilio Ruiz-Reina, Eduardo González, Maria L. Nó, Jose M. San Juan |
| On-Site Speaker (Planned) |
Jose M. San Juan |
| Abstract Scope |
Shape Memory Alloys (SMA) are classified as high-damping materials and due to size effects at small scale, micro/nano pillars of SMA exhibit ultra-high damping, measured through the loss factor, reaching values as high as η = 0.2. In order to develop micro/nano dampers, we fabricated several micro/nano pillar arrays on [001] oriented single crystals of CuAlNi SMA in its superelastic state at room temperature. These arrays were produced by focused ion beam (FIB) and tested by in-situ nano compression experiments performed inside the scanning electron microscope and using a pico-indenter with a 20 μm diameter flat-punch diamond. In parallel, the design of the array of micro/nano pillars and their superelastic behavior, responsible for the damping properties, have been modeled through the finite element method using the non-linear structural mechanics capabilities of COMSOL multiphysics. The synergy between in-situ experiments and the computer modeling allows the design of ultra-high damping meta-surfaces. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Nanotechnology, Mechanical Properties |