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dielectric elastomers

matthew.grasinger's picture

Nonlinear statistical mechanics drives intrinsic electrostriction and volumetric torque in polymer networks

Dear colleagues,

We invite you to see the preprint of our new paper "Nonlinear statistical mechanics drives intrinsic electrostriction and volumetric torque in polymer networks" that will appear in Physical Review E. Here we use a nonlinear statistical mechanics approach to the electroelasticity of dielectric polymer chains and obtain a two-way coupling between chain deformation and dielectric response. This two-way coupling leads to electrically induced stresses and volumetric torques within an elastomer network which can be leveraged to develop higher efficiency soft actuators, electroactive materials, and novel electromechanical mechanisms. (

matthew.grasinger's picture

Architected Elastomer Networks for Optimal Electromechanical Response

Dear Colleagues,

This is the preprint of an article on the design of elastomer networks for optimal electromechanical response that will appear in JMPS. We explore how various structural properties of an elastomer network (e.g. density of cross-links, fraction of loose-end monomers, orientation density of chains, etc.) affects both its bulk elastic and dielectric properties, and its performance as an actuator. (


liheng.cai's picture

Postdoc opening in 3D printing of soft biomaterials at UVA

The Cai Soft Biomatter Laboratory ( at the University of Virginia is seeking to fill a Postdoctoral Researcher position in 3D printing of soft biomaterials. The project consists of two core areas: (1) materials innovation and (2) technology development. The successful candidate will develop new soft materials as inks for 3D printing, and use customized 3D printing technologies to transform the materials to adaptive structures for photonic and biomedical applications.

noyco's picture

On the origins of the electro-mechanical response of dielectric elastomers

Recent theoretical works have shown that the electro-mechanical performance of dielectric elastomers can be enhanced through micro-structural design.

Jinxiong Zhou's picture

Soft mobile robots driven by foldable dielectric elastomer actuators

A cantilever beam with elastic hinge pulled antagonistically by two dielectric elastomer (DE) membranes in tension forms a foldable actuator if one DE membrane is subject to a voltage and releases part of tension. Simply placing parallel rigid bars on the prestressed DE membranes results in enhanced actuators working in pure shear state. We report design, analysis, fabrication and experiment of soft mobile robots that are moved by such foldable DE actuators.

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