Rate dependent constitutive behavior of dielectric elastomers and applications in legged robotics

William Oates; Paul Miles; Wei Gao; Jonathan Clark; Somayeh Mashayekhi; M. Yousuff Hussaini

doi:10.1117/12.2260185

17 April 2017 Rate dependent constitutive behavior of dielectric elastomers and applications in legged robotics

William Oates, Paul Miles, Wei Gao, Jonathan Clark, Somayeh Mashayekhi, M. Yousuff Hussaini

Proceedings Volume 10163, Electroactive Polymer Actuators and Devices (EAPAD) 2017; 1016316 (2017) https://doi.org/10.1117/12.2260185
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2017, Portland, Oregon, United States

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.

Conference Presentation

Citation Download Citation

William Oates, Paul Miles, Wei Gao, Jonathan Clark, Somayeh Mashayekhi, and M. Yousuff Hussaini "Rate dependent constitutive behavior of dielectric elastomers and applications in legged robotics", Proc. SPIE 10163, Electroactive Polymer Actuators and Devices (EAPAD) 2017, 1016316 (17 April 2017); https://doi.org/10.1117/12.2260185

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available