Hygromnemics: Programmable Material Memory Matter Actuators via Wet Pre‐Constraining
Charles de Kergariou, Findlay S. G. Smith, Richard S. Trask, Adam W. Perriman, Fabrizio Scarpa, David Correa · Wiley · 2025
Hygromnemic actuators utilize humidity to store and program shape memory, enabling innovative soft robotic applications.
Plain English summary
Why this matters
Key findings
- Hygromnemic actuators store shape memory activated by humidity.
- Actuators can achieve sinusoidal actuation patterns.
- They operate effectively in low humidity (12% relative humidity).
- Strength is 253% higher in dry conditions compared to wet.
- Shape storage capability allows control during operational service.
What's new
The introduction of hygromnemic actuators that utilize humidity for shape memory programming is a new approach compared to traditional thermally-induced methods.
Limitations
The abstract does not provide details on the long-term durability of the actuators or their performance in varying humidity levels beyond the tested conditions.
Commercial context
The technology is still in the conceptual stage and has not been demonstrated in commercial applications.
Publication
- Publisher
- Wiley
- Publication date
- August 23, 2025
- Research type
- Paper
- License
- http://creativecommons.org/licenses/by/4.0/
Tags
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