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Model Equations of Shape Memory Effect - Nitinol

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Author(s): Daniel Amariei | Ion Vela | Gilbert-Rainer Gillich | Călin Octavian Micloșină

Journal: Analele Universităţii Eftimie Murgu Reşiţa. Fascicula de Inginerie
ISSN 1453-7397

Volume: XVII;
Issue: 2;
Start page: 11;
Date: 2010;
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Keywords: shape memory | modeling | actuation | thermo mechanical transfer | Nitinol

ABSTRACT
Even it has been already confirmed that SMA’s have high potential for robotic actuators, actuators included in space robotics, underwater robotics, robotics for logistics, safety, as well as “green robotics” (robotics for the environment, energy conservation, sustainable development or agriculture), the number of applications of SMA-based actuators is still quite small, especially in applications in which their large strains, high specific work output and structural integration potential are useful,. The paper presents a formulated mathematical model calculated for binary SMA (Ni-Ti), helpful to estimate the stress distribution along with the transformation ratio of a SMA active element.
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