Shaikh, A and Panwar, S and Tsuruta, R and Gandhi, U (2022) Effect of Coating on the Continuous Cycle Actuation of Shape Memory Alloy Wires: Analyses and Experiments. In: Proceedings of ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2022, 12 - 14 September 2022, Dearborn.
Full text not available from this repository.Abstract
We develop a finite element methodology to characterize the effects of silicone coating on Shape Memory Alloy (SMA) actuators during continuous actuation cycles. Slow cooling rates of thermally actuated SMA actuators have long been a hurdle for their widespread adoption. The use of a thermally conductive silicone coating provides a potential solution that improves cooling rates without much impact on the actuator thermal performance under single actuation. However, the effects of the coating on the thermal performance under cyclic actuation is unexplored. To verify the finite element model results, various thicknesses between 0.2 mm to 2.5 mm of the coating material were applied to 0.5 mm diameter SMA wires using a specially fabricated coating machine. The results of finite element models were first compared with and calibrated against experimentally measured thermal performance for single actuation cycle. Next, the actuation responses of the numerical models of these coated SMA wires are determined for multiple actuation cycles. Copyright © 2022 by ASME.
| Item Type: | Conference Paper |
|---|---|
| Publication: | Proceedings of ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2022 |
| Publisher: | American Society of Mechanical Engineers |
| Additional Information: | The copyright for this article belongs to American Society of Mechanical Engineers. |
| Keywords: | Cooling; Finite element method; Shape-memory alloy; Wire, Coating material; Conductive silicone; Cooling rates; Finite element methodology; Finite element modelling (FEM); Modeling results; Shape memory alloy actuators; Shape memory alloy wire; Slow cooling; Thermal Performance, Silicones |
| Department/Centre: | Division of Mechanical Sciences > Mechanical Engineering |
| Date Deposited: | 14 Jan 2023 10:41 |
| Last Modified: | 14 Jan 2023 10:41 |
| URI: | https://eprints.iisc.ac.in/id/eprint/79162 |
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