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Auxetic elastomers: Mechanically programmable meta-elastomers with an unusual Poisson's ratio overcome the gauge limit of a capacitive type strain sensor
Cited 44 time in
Web of Science
Cited 46 time in Scopus
- Authors
- Issue Date
- 2019-09
- Publisher
- Elsevier Limited
- Citation
- Extreme Mechanics Letters, Vol.31, p. 100516
- Abstract
- How can we modulate the inherent Poisson's ratio value of soft elastomeric materials? The theoretical limit value of the Poisson's ratio of isotropic materials can be defined from -1 to 0.5 but elastomers generally take the Poisson's ratio of 0.5. Herein, we introduce and establish the concept of a mechanical meta elastomer called "auxetic elastomer". This is a continuum-solid elastomer having unique programmable elastic properties of Poisson's ratio that are beyond their conventional ranges, and include in-plane negative and out-of-plane high positive Poisson's ratios. Leveraging these unique deformation characteristics, we applied auxetic elastomers as a soft dielectric material for a highly stretchable capacitive-type strain sensor that overcomes the inherent performance limitations in terms of the low gauge factor. (C) 2019 Elsevier Ltd. All rights reserved.
- ISSN
- 2352-4316
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