Intrinsically Tuning the Electromechanical Properties of Elastomeric Dielectrics: A Chemistry Perspective.
Sign Up to like & getrecommendations! Published in 2018 at "Macromolecular rapid communications"
DOI: 10.1002/marc.201800340
Abstract: Dielectric elastomers have the capability to be used as transducers for actuation and energy harvesting applications due to their excellent combination of large strain capability (100-400%), rapid response (10-3 s), high energy density (10-150 kJ m-3 ),… read more here.
Keywords: tuning electromechanical; chemistry; properties elastomeric; intrinsically tuning ... See more keywords
A computationally efficient locking free numerical framework for modeling visco-hyperelastic dielectric elastomers
Sign Up to like & getrecommendations! Published in 2019 at "Computer Methods in Applied Mechanics and Engineering"
DOI: 10.1016/j.cma.2019.04.035
Abstract: Abstract In this paper, we present a finite element formulation for simulating the electromechanical behavior of nonlinear visco-hyperelastic dielectric elastomers undergoing isochoric finite strain deformations. The incompressible nature of dielectric elastomer results in the problem… read more here.
Keywords: formulation; method; hyperelastic dielectric; dielectric elastomers ... See more keywords
Dynamics of soft mechanical systems actuated by dielectric elastomers
Sign Up to like & getrecommendations! Published in 2021 at "Mechanical Systems and Signal Processing"
DOI: 10.1016/j.ymssp.2020.107392
Abstract: Abstract A computation methodology for studying the dynamics of flexible mechanical systems containing soft actuators of dielectric elastomers is originally proposed. The absolute nodal coordinate formulation (ANCF) is used to describe the rigid-body motions and… read more here.
Keywords: methodology; dynamics soft; mechanical systems; dielectric elastomers ... See more keywords
Crosslinking Methodology for Imidazole-Grafted Silicone Elastomers Allowing for Dielectric Elastomers Operated at Low Electrical Fields with High Strains
Sign Up to like & getrecommendations! Published in 2022 at "ACS Applied Materials & Interfaces"
DOI: 10.1021/acsami.2c16086
Abstract: For improved actuation at low voltages of dielectric elastomers, a high dielectric permittivity has been targeted for several years but most successful methods then either increase the stiffness of the elastomer and/or introduce notable losses… read more here.
Keywords: pdms elastomers; prepare pdms; methodology; dielectric elastomers ... See more keywords
Dielectric Elastomers with Liquid Metal and Polydopamine-Coated Graphene Oxide Inclusions
Sign Up to like & getrecommendations! Published in 2023 at "ACS Applied Materials & Interfaces"
DOI: 10.1021/acsami.2c21994
Abstract: Suspending microscale droplets of liquid metals like eutectic gallium–indium (EGaIn) in polydimethylsiloxane (PDMS) has been shown to dramatically enhance electrical permittivity without sacrificing the elasticity of the host PDMS matrix. However, increasing the dielectric constant… read more here.
Keywords: liquid metal; coated graphene; metal polydopamine; dielectric elastomers ... See more keywords
Enhanced Electro-actuation in Dielectric Elastomers: The Nonlinear Effect of Free Ions
Sign Up to like & getrecommendations! Published in 2021 at "ACS Macro Letters"
DOI: 10.1021/acsmacrolett.1c00045
Abstract: Plasticized poly(vinyl chloride) (PVC) is a jelly-like soft dielectric material that attracted substantial interest recently as a new type of electro-active polymers. Under electric fields of sever... read more here.
Keywords: electro actuation; nonlinear effect; actuation dielectric; dielectric elastomers ... See more keywords
Reconfigurable shape-morphing dielectric elastomers using spatially varying electric fields
Sign Up to like & getrecommendations! Published in 2019 at "Nature Communications"
DOI: 10.1038/s41467-018-08094-w
Abstract: Exceptionally large strains can be produced in soft elastomers by the application of an electric field and the strains can be exploited for a variety of novel actuators, such as tunable lenses and tactile actuators.… read more here.
Keywords: electric fields; shape morphing; morphing dielectric; dielectric elastomers ... See more keywords
Increasing the breakdown strength of dielectric actuators by using Cu/CuxO/silicone dielectric elastomers
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Materials Chemistry C"
DOI: 10.1039/c8tc04454f
Abstract: Dielectric elastomer actuators (DEAs) have been receiving extensive attention due to their unparalleled combination of high energy density, high efficiency, softness, silent operation, and muscle-like performance, which are favorable for soft robotics. However, DEAs encounter… read more here.
Keywords: increasing breakdown; using cuxo; breakdown strength; dielectric elastomers ... See more keywords
Large stable deformation of dielectric elastomers driven on mode of steady electric field
Sign Up to like & getrecommendations! Published in 2017 at "Smart Materials and Structures"
DOI: 10.1088/1361-665x/aa68d2
Abstract: Dielectric elastomers (DEs) are capable of large deformation under the actuation of applied voltage and sprayed charge. Actuation of DE under voltage control is prone to electromechanical instabilities, while the DE under charge control always… read more here.
Keywords: mode steady; deformation; dielectric elastomers; electric field ... See more keywords
Snap-through instability analysis of dielectric elastomers with consideration of chain entanglements
Sign Up to like & getrecommendations! Published in 2018 at "Materials Research Express"
DOI: 10.1088/2053-1591/aac6fe
Abstract: It is widely recognized that the extension limit of polymer chains has a significant effect on the snap-through instability of dielectric elastomers (DEs). The snap-through instability performance of DEs has been extensively studied by two… read more here.
Keywords: snap instability; model; chain entanglements; dielectric elastomers ... See more keywords
Surface instabilities of soft dielectric elastomers with implementation of electrode stiffness
Sign Up to like & getrecommendations! Published in 2022 at "Mathematics and Mechanics of Solids"
DOI: 10.1177/10812865221084309
Abstract: This paper contains a thorough investigation into plane-strain electroelastic surface instabilities of dielectric elastomers. We employ a systematic approach to our investigation, introducing three ways to actuate an elastomer device, namely, actuation by means of… read more here.
Keywords: instabilities soft; surface instabilities; soft dielectric; surface ... See more keywords