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Amplifying the response of soft actuators by harnessing snap-through instabilities
Open accessAbstract
Significance: Although instabilities have traditionally been avoided as they often represent mechanical failure, here we embrace them to amplify the response of fluidic soft actuators. Besides presenting a robust strategy to trigger snap-through instabilities at constant volume in soft fluidic actuators, we also show that the energy released at the onset of the instabilities can be harnessed to trigger instantaneous and significant changes in internal pressure, extension, shape, and exerted force. Therefore, in stark contrast to previously studied soft fluidic actuators, we demonstrate that by harnessing snap-through instabilities it is possible to design and construct systems with highly controllable nonlinear behavior, in which small amounts of fluid suffice to generate large outputs.
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Hydraulically amplified self-healing electrostatic actuators with muscle-like performance
Acome, E., Mitchell, S. K., Morrissey, T. G., Emmett, M. B., Benjamin, C., King, M., Radakovitz, M., & Keplinger, C. (2018) · Science · doi:10.1126/science.aao6139 · Cited by 1,072
Fluid-driven origami-inspired artificial muscles
Li, S., Vogt, D. M., Rus, D., & Wood, R. J. (2017) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1713450114 · Cited by 747
Tailored Buckling Microlattices as Reusable Light‐Weight Shock Absorbers
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Metadata
- Authors
- Overvelde, J. T. B., Kloek, T., D’haen, J. J. A., & Bertoldi, K.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2015-08-17
- Volume
- 112
- Issue
- 35
- Pages
- 10863-10868
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2106567248
- Cited by
- 283
- References
- 1
- FWCI
- 8.18
- Type
- journal article
- Language
- en
- Open access
- bronze
- Funders
- National Science Foundation (DMR-1420570, CMMI-1149456)
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- Overvelde, J. T. B., Kloek, T., D’haen, J. J. A., & Bertoldi, K. (2015). Amplifying the response of soft actuators by harnessing snap-through instabilities. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.1504947112
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