Actuation of magnetoelastic membranes in precessing magnetic fields
Superparamagnetic nanoparticles incorporated into elastic media provide the possibility of creating actuators driven by external fields in a multitude of environments. In this report, magnetoelastic membranes are studied through a combination of continuum mechanics and molecular dynamics simulations. We demonstrate how induced magnetic interactions affect the buckling and the configuration of magnetoelastic membranes in rapidly precessing magnetic fields. The field, in competition with the bending and stretching of the membrane, transmits forces and torques that drives the membrane to expand, contract, or twist. We identify critical field values that induce spontaneous symmetry breaking as well as field regimes where multiple membrane configurations may be observed. Our insights into buckling mechanisms give the bases to develop soft, autonomous robotic systems that can be used at micro- and macroscopic length scales.
- Research Organization:
- Northwestern Univ., Evanston, IL (United States) Energy Frontier Research Center (EFRC) Center for Bio-Inspired Energy Science (CBES)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0000989
- OSTI ID:
- 1494394
- Alternate ID(s):
- OSTI ID: 1566667
- Journal Information:
- Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Vol. 116 Journal Issue: 7; ISSN 0027-8424
- Publisher:
- National Academy of SciencesCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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