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Tobushi H.♦, Pieczyska E.A., Nowacki W.K., Sakuragi T.♦, Sugimoto Y.♦, Torsional deformation and rotary driving characteristics of SMA thin strip,
ARCHIVES OF MECHANICS, ISSN: 0373-2029, Vol.61, No.3-4, pp.241-257, 2009 Abstract:
The torsional deformation properties of a TiNi shape-memory alloy thin strip were investigated. The results obtained are summarized as follows. (1) The martensitic transformation starts at the edge of the thin strip. (2) The torsional deformation properties change slightly under thermomechanical cycling. (3) The fatigue life in pul- sating torsion is longer than that in alternating torsion. (4) A simple rotary driving element can be developed by using the SMA thin strip.
Keywords:
shape memory alloy, thin strip, torsion, cyclic deformation, fatigue, rotary driving element Affiliations:
| Tobushi H. | - | Aichi Institute of Technology (JP) | | Pieczyska E.A. | - | IPPT PAN | | Nowacki W.K. | - | IPPT PAN | | Sakuragi T. | - | Aichi Institute of Technology (JP) | | Sugimoto Y. | - | Aichi Institute of Technology (JP) |
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| 2. |
Tobushi H.♦, Pieczyska E.A., Nowacki W.K., Sugimoto Y.♦, SMA thin strip for rotary-driving element,
SOLID STATE PHENOMENA, ISSN: 1012-0394, DOI: 10.4028/www.scientific.net/SSP.154.47, Vol.154, pp.47-52, 2009Abstract:
If a shape-memory alloy (SMA) thin strip is applied as an element subjected to torsion, a rotary driving element with a simple mechanism can be developed. The torsion tests were carried out for the SMA thin strip. Torque and recovery torque, both increase in proportion to the angle of twist and temperature. The recoverable strain energy increases in proportion to temperature. The dissipated work decreases slightly with an increase in temperature. A means of opening and closing a door with an element driven by an SMA thin strip is demonstrated. Keywords:
Rotary Driving Element, Shape Memory Alloy Actuator, Strain Energy, Thin Strip, Torsion Affiliations:
| Tobushi H. | - | Aichi Institute of Technology (JP) | | Pieczyska E.A. | - | IPPT PAN | | Nowacki W.K. | - | IPPT PAN | | Sugimoto Y. | - | Aichi Institute of Technology (JP) |
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