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Proceedings Paper

Rate dependent constitutive behavior of dielectric elastomers and applications in legged robotics
Author(s): William Oates; Paul Miles; Wei Gao; Jonathan Clark; Somayeh Mashayekhi; M. Yousuff Hussaini
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Paper Abstract

Dielectric elastomers exhibit novel electromechanical coupling that has been exploited in many adaptive structure applications. Whereas the quasi-static, one-dimensional constitutive behavior can often be accurately quantified by hyperelastic functions and linear dielectric relations, accurate predictions of electromechanical, rate-dependent deformation during multiaxial loading is non-trivial. In this paper, an overview of multiaxial electromechanical membrane finite element modeling is formulated. Viscoelastic constitutive relations are extended to include fractional order. It is shown that fractional order viscoelastic constitutive relations are superior to conventional integer order models. This knowledge is critical for transition to control of legged robotic structures that exhibit advanced mobility.

Paper Details

Date Published: 17 April 2017
PDF: 8 pages
Proc. SPIE 10163, Electroactive Polymer Actuators and Devices (EAPAD) 2017, 1016316 (17 April 2017); doi: 10.1117/12.2260185
Show Author Affiliations
William Oates, Florida A&M Univ. (United States)
Florida State Univ. (United States)
Paul Miles, Florida A&M Univ. (United States)
Florida State Univ. (United States)
Wei Gao, Florida A&M Univ. (United States)
Florida State Univ. (United States)
Jonathan Clark, Florida A&M Univ. (United States)
Florida State Univ. (United States)
Somayeh Mashayekhi, Florida State Univ. (United States)
M. Yousuff Hussaini, Florida State Univ. (United States)


Published in SPIE Proceedings Vol. 10163:
Electroactive Polymer Actuators and Devices (EAPAD) 2017
Yoseph Bar-Cohen, Editor(s)

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