Abstract
The shape changes by bending and twisting of a SMA/composite panel with embedded SMA wire actuators controlled by both electric resistive heating and passive elastic tailoring are investigated to realize the morphing wing of unmanned aerial vehicles. Three-dimensional finite element formulations are derived and used to analyze the behaviors of the SMA/composite smart structures. The numerical results show that the shapes of the SMA/composite panels can be controlled by judicious choices of control temperatures, SMA angles, and elastic tailoring. To validate the analytical results, two SMA-embedded curved panels are fabricated and then, their changes in shape are measured by a laser optical sensor when SMA is activated by electrically resistive heating. Both results show excellent correlation.
| Original language | English |
|---|---|
| Pages (from-to) | 1463-1468 |
| Number of pages | 6 |
| Journal | Key Engineering Materials |
| Volume | 261-263 |
| Issue number | II |
| DOIs | |
| State | Published - 2004 |
| Event | Advances in Fracture and Failure Prevention: Proceedings of the Fifth International Conference on Fracture and Strength of Solids (FEOFS2003): Second International Conference on Physics and Chemistry of Fracture and Failure Prevention (2nd ICPCF) - Sendai, Japan Duration: 20 Oct 2003 → 22 Oct 2003 |
Keywords
- Composite plate
- Finite element analysis
- Morphing structure
- Shape control
- SMA wire
- Smart skin