Dielectric elastomer actuators under equal-biaxial forces, uniaxial forces, and uniaxial constraint of stiff fibers
By Tongqing Lu, Jiangshui Huang, C. Jordi, Gábor Kovács, Rui Huang, David R. Clarke, Zhigang Suo. 2012
285 citations recorded by the source corpus.
A membrane of a dielectric elastomer deforms when a voltage is applied through its thickness. The achievable voltage-induced deformation is strongly affected by how mechanical loads are applied. Large voltage-induced deformation has been demonstrated for a membrane under equal-biaxial forces, but only small voltage-induced deformation has been observed for a membrane under a uniaxial force. This difference is interpreted here theoretically. The theory also predicts that, when the deformation of a membrane is constrained in one direction, a voltage applied through the thickness of the membrane can cause it to deform substantially in the other direction. Experiments are performed on membranes under equal-biaxial forces and uniaxial forces, as well as on fiber-constrained membranes of two types: a dielectric elastomer membrane with carbon fibers on both faces, and two dielectric elastomer membranes sandwiching nylon fibers. The experimental observations are compared with the theory.
Subfields: Biomedical Engineering, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/7eef44cea2bea65b72fcb77d2e58aa2f6bc6089c
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In Biomedical Engineering
- Zhigang Suo
- Christoph Keplinger
- Siegfried Bauer
- Tiefeng Li
- Wei Yang
- Richard A. Baumgartner
- Xuanhe Zhao
- Jian Zhu
In Mechanical Engineering
Citations in the corpus
- Giant voltage-induced deformation in dielectric elastomers near the verge of snap-through instability (2013, background): “By contrast, voltage-induced deformation is reduced when the membrane is subject to uniaxial dead load (Huang and Suo, 2012; Lu et al., 2012).”