Large deformation, high energy density dielectric elastomer actuators: Principles, factors, optimization, applications, and prospects

L Yang, H Wang, D Zhang, Y Yang, D Leng - Chemical Engineering …, 2024 - Elsevier
Compared to traditional robots, soft robots have more intriguing performance. Dielectric
elastomer actuators (DEAs) are the key components of soft robots. Analyzing various …

Electromechanical Deformations and Bifurcations in Soft Dielectrics: A Review

Y Su, X Shen, Z Zhao, B Wu, W Chen - Materials, 2024 - mdpi.com
Dielectric elastomers have attracted considerable attention both from academia and industry
alike over the last two decades due to their superior mechanical properties. In parallel …

Morphological instability of geometrically incompatible bilayer tubes

C Liu, Y Du, K Li, C Lü - International Journal of Mechanical Sciences, 2024 - Elsevier
Surface morphological instability, induced by geometric incompatibility, is ubiquitous in
nature and plays a pivotal role in maintaining specific biological functions in organs. In this …

Local and global dynamics of a functionally graded dielectric elastomer plate

A Alibakhshi, S Rahmanian, M Destrade… - International Journal of …, 2024 - Elsevier
We investigate the nonlinear vibrations of a functionally graded dielectric elastomer plate
subjected to electromechanical loads. We focus on local and global dynamics in the system …

Understanding the torsional mechanical behavior of twisting carbon nanotube ribbon with different boundary conditions

X Hu, Y Zheng, G Sun, P Wang - Mechanics of Materials, 2024 - Elsevier
Twisting can generate internal stress and store torsional energy, which is widely used as
actuators and energy harvesters in electronic and biomedical fields. However, uncovering …

Finite deformations of a nonlinearly elastic electrosensitive tube reinforced by two fiber families

AM Kolesnikov - Continuum Mechanics and Thermodynamics, 2022 - Springer
In this paper, the theory of nonlinear electroelasticity is used to examine deformations of a
dielectric elastomer tube, reinforced by two families of helical fibers with different angles …

3D-printed composites with a programmable response to tension and torsion: A design guide

R Levit, N Cohen - Mechanics Research Communications, 2024 - Elsevier
Abstract 3D-printed composite structures employed in applications such as soft robotics,
actuators, and artificial muscles typically experience different loading and deformation …

Energy harvesting with dielectric elastomer tubes: active and (responsive materials-based) passive approaches

T Hanuhov, R Brighenti, N Cohen - Smart Materials and …, 2024 - iopscience.iop.org
Mechanical to electrical energy conversion is a well-established energy transduction
approach. However, cases in which a mechanical energy source is not available call for new …

Exploiting perforations to enhance the adhesion of 3D-printed lap shears

S Keren, T Segal-Peretz, N Cohen - Theoretical and Applied Fracture …, 2023 - Elsevier
Soft polymeric adhesives capable of experiencing large deformations are used in many
applications, including soft robotics, stretchable electronics, and tissue engineering. The …

Finite Deformations of a Bilayer Dielectric Nonlinear-Elastic Anisotropic Tube under the Action of an Electric Field

AM Kolesnikov, DA Letunova - Vestnik St. Petersburg University …, 2023 - Springer
In this work, we consider the problem of finite deformations of a dielectric tube under the
action of an electric field. The tube consists of two layers, each of which is helically …