Abstract
We present a new concept of morphing bistable structure which relies on viscoelastic effects. We show how a careful choice of geometrical and material parameters for an isotropic spherical dome can result in a pseudo-bistable structure which, once actuated, can return to its original state without further actuation. A numerical model is used to investigate the effect of various parameters on the nature of the pseudo-bistability, and a global geometrical parameter is found to govern the characteristic response of the structure. Experimental results demonstrate this phenomenon in a real dome.
Original language | English |
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Pages (from-to) | 1077-1087 |
Number of pages | 11 |
Journal | International Journal of Solids and Structures |
Volume | 49 |
Issue number | 9 |
DOIs | |
Publication status | Published - 1 May 2012 |
Externally published | Yes |
Keywords
- Adaptive structures
- Bistability
- Morphing
- Snap-through
- Viscoelasticity