Results 11 to 20 of about 2,979 (261)
Catastrophic Thinning of Dielectric Elastomers [PDF]
Physical Review Letters, 2017 We provide an energetic insight into the catastrophic nature of thinning instability in soft electroactive elastomers. This phenomenon is a major obstacle to the development of giant actuators, yet it is neither completely understood nor modeled accurately.
Zurlo, G. +3 more
openaire +5 more sources
Dielectric elastomer actuators [PDF]
Journal of Applied Physics, 2021 Dielectric elastomer actuators (DEAs) are soft, electrically powered actuators that have no discrete moving parts, yet can exhibit large strains (10%–50%) and moderate stress (∼100 kPa). This Tutorial describes the physical basis underlying the operation of DEA's, starting with a simple linear analysis, followed by nonlinear Newtonian and energy ...
Ehsan Hajiesmaili, David R. Clarke
openaire +1 more source
Materials & Design, 2020 Chemically cross-linked polydimethylsiloxane (PDMS) elastomers have gained importance as a dielectric in elastic capacitor actuators, which elongate when electrically charged. Common PDMS elastomers have a dielectric permittivity of only about 3 and thus
Elena Perju +3 more
doaj +1 more source
International Journal of Engineering and Advanced Technology, 2021 This paper appraisals state-of-the-art dielectric elastomer actuators (DEAs) and their forthcoming standpoints as soft actuators which have freshly been considered as a crucial power generation module for soft robots. DEs behave as yielding capacitors, expanding in area and attenuation in thickness when a voltage is applied.
Mills Patel +4 more
openaire +2 more sources
Polymer Testing, 2022 To achieve high deformation under a low electric field intensity is still a big challenge for the dielectric elastomers (DE) potentially used in artificial electronic skin and artificial muscles.
Zhaoxia Luo +4 more
doaj +1 more source
Fracture and Structural Integrity, 2012 Thanks to their large power densities, low costs and shock-insensitivity, Dielectric Elastomers (DE) seem to be a promising technology for the implementation of light and compact force-feedback devices such as, for instance, haptic interfaces ...
R. Vertechy +4 more
doaj +3 more sources
Monodirectional Positioning Using Dielectric Elastomers [PDF]
, 2010 The rationales for the use of microsystems are numerous, including the reduction of consumables, a faster response time, the enhanced portability, the higher resolution, and the higher efficiency; moreover their application sectors are numerous. Nevertheless microproducts have still great difficulty in penetrating the market, mainly due to the limits ...
Pagano C, Malosio M, Fassi I
openaire +1 more source
Dielectric elastomer actuator biased by magnetorheological elastomer with permanent magnet
Smart Materials and Structures, 2023 Abstract Dielectric elastomer actuators have become one of the most important smart material transducers in recent times. One of the crucial aspects in this field is the application of bias to find the best operating conditions. The basic task is to find the proper bias configuration to obtain a wide range of displacements in the ...
Jakub Bernat +3 more
openaire +3 more sources
Nature Communications, 2023 Dielectric elastomers (DEs) are widely used in soft actuators but existing DE actuators often require high driving electrical fields. Here the authors demonstrate that introducing cyanoethyl cellulose into plasticized PVC gel confers high dielectric ...
Jianjian Huang +4 more
doaj +1 more source
Suppression of electromechanical instability in fiber-reinforced dielectric elastomers
AIP Advances, 2016 The electromechanical instability of dielectric elastomers has been a major challenge for the application of this class of active materials. In this work, we demonstrate that dielectric elastomers filled with soft fiber can suppress the electromechanical
Rui Xiao, Xiaofan Gou, Wen Chen
doaj +1 more source