Abstract
The size effect in triggering the actuation of NiTi shape memory alloys directly by electrical current is investigated. Wire/rod is taken as an example in this study to show the relationship between the diameter of shape memory alloy wire/rod and the required current/power for actuation, and in the case of cyclic operation, achievable frequency. Through a few case studies, it is revealed that by presenting on logarithmic scale, the major operating characteristics can be quickly estimated as linear functions of wire/rod diameter. © 2007 Elsevier Ltd. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 1432-1437 |
| Number of pages | 6 |
| Journal | Materials & Design |
| Volume | 29 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2008 |
Keywords
- Actuation
- Frequency
- Power
- Shape memory alloy
- Size effect
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