Two - way SMA actuators for space application: performances and reliability

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  • Author: J. Matovic, K. Reichenberger
We demonstrate for the first time highly reliable actuators based on two-way shape memory effect (TWSME). Under life test, our actuators endure 300.000 loading cycles without performance degradation (fade out or amnesia). Further, we developed manufacturing technology which enables programming of the actuator deformation in austenite and martensite phase within the tolerance of ±6%. Novel actuators were qualified at the breadboard model level as the first TWSME actuators for space applications at the European Space Agency.
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