Static and dynamic instability modeling of electro-magneto-active polymers with various entanglements and crosslinks

A Khurana, D Kumar, AK Sharma… - International Journal of …, 2022 - Elsevier
Abstract Electro-magneto-active (EMA) polymers-based smart actuators suffer from electro-
magneto-mechanical instability (EMMI) phenomena arising due to the positive feedback …

Dynamic modeling of dielectric elastomer-based minimum energy structures with membrane entanglements and finite extensibility

A Khurana, A Kumar, AK Sharma, MM Joglekar - Sādhanā, 2022 - Springer
The shape morphing behavior of dielectric elastomer-based minimum energy structures
(DEMES) generated by combining an inextensible frame and a pre-stretched dielectric …

Effect of polymer chains entanglements, crosslinks and finite extensibility on the nonlinear dynamic oscillations of dielectric viscoelastomer actuators

A Khurana, A Kumar, AK Sharma, MM Joglekar - Nonlinear Dynamics, 2021 - Springer
Soft materials exhibiting large deformation under external stimuli have gained an increasing
attention in the recent past because of their potential applications in soft transducers aimed …

Dynamic modeling and residual vibration suppression of electrostatically driven soft dielectric elastomer minimum energy structures

AK Pandey, A Khurana, AK Sharma - European Journal of Mechanics-A …, 2023 - Elsevier
Dielectric elastomers (DEs), a special class of soft electro-active polymers that undergo finite
deformation under external electrical stimuli, offer a wide range of applications that include …

Thermo-electro-mechanical effects on nonlinear dynamics of smart dielectric elastomer minimum energy structures

AK Pandey, A Khurana, AK Sharma - European Journal of Mechanics-A …, 2024 - Elsevier
Minimum energy structures made up of smart electro-active polymers (SEAPs) have
attracted significant attention in the field of soft robotics and actuators due to their …

Nonlinear dynamic analysis of aniso-visco-hyperelastic dielectric elastomer actuators

K Kashyap, AK Sharma… - Smart Materials and …, 2020 - iopscience.iop.org
Dielectric elastomers (DEs) are a class of highly deformable electro-active polymers (EAPs)
employed for electromechanical transduction technology. Imparting anisotropy to the …

Effect of anisotropy on the dynamic electromechanical instability of a dielectric elastomer actuator

AK Sharma, MM Joglekar - Smart Materials and Structures, 2018 - iopscience.iop.org
Electrically driven dielectric elastomer actuators (DEAs) are susceptible to an
electromechanical instability because of a positive feedback between the applied electric …

Tunable electroelastic waves in soft dielectric elastomer phononic crystals: Exploring the effect of polymer chain network architecture

AK Sharma - International Journal of Applied Mechanics, 2024 - ui.adsabs.harvard.edu
The polymer chain network within the dielectric elastomers (DEs) contains numerous
entanglements, crosslinks and finite extensibility, all of which play a substantial role in the …

A molecular perspective to analytical modeling that reveals new instabilities in dielectric elastomer transducers

AT Mathew, TVK Vo, SJA Koh - Journal of the Mechanics and Physics of …, 2019 - Elsevier
We use a four-parameter material model for polymers-the Edward–Vilgis (EV) model, which
models polymeric crosslinks, sliplinks, slippage and inextensibility to analyze dielectric …

Pre-stretch and frequency variation effect on the dielectric permittivity of a dielectric elastomer: an amended permittivity model

D Kumar, S Sarangi - Sādhanā, 2019 - Springer
In the present letter, we model the pre-stretch and frequency parameter effect on the
dielectric permittivity of a dielectric elastomer. The present work is the extension of our most …