Harnessing snap-through instability in soft dielectrics to achieve giant voltage-triggered deformation

@article{Keplinger2012HarnessingSI,
  title={Harnessing snap-through instability in soft dielectrics to achieve giant voltage-triggered deformation},
  author={C. Keplinger and T. Li and Richard A. Baumgartner and Z. Suo and S. Bauer},
  journal={Soft Matter},
  year={2012},
  volume={8},
  pages={285-288}
}
A soft dielectric membrane is prone to snap-through instability. We present theory and experiment to show that the instability can be harnessed to achieve giant voltage-triggered deformation. We mount a membrane on a chamber of a suitable volume, pressurize the membrane into a state near the verge of the instability, and apply a voltage to trigger the snap without causing electrical breakdown. For an acrylic membrane we demonstrate voltage-triggered expansion of area by 1692%, far beyond the… Expand
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