Functionally Graded Soft Dielectric Elastomer Phononic Crystals: Finite Deformation, electro-elastic longitudinal waves, and band gaps tunability via electro …

Z Alam, AK Sharma - International Journal of Applied Mechanics, 2022 - World Scientific
Active tuning of elastic wave band gaps received significant attention in the recent past. To
this end, soft dielectric elastomers (DEs) have indicated great promise owing to their …

Viscoelastic effects on the nonlinear oscillations of hard-magnetic soft actuators

S Nandan, D Sharma… - Journal of Applied …, 2023 - asmedigitalcollection.asme.org
The hard-magnetic soft materials (HMSMs) belong to the magnetoactive category of smart
polymers that undergo large actuation strain under an externally applied magnetic field and …

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 …

Nonlinear oscillations of particle-reinforced electro-magneto-viscoelastomer actuators

A Khurana, D Kumar… - Journal of Applied …, 2021 - asmedigitalcollection.asme.org
This work presents the dynamic modeling and analysis of a particle-reinforced and pre-
stressed electro-magneto-viscoelastic plate actuator. The actuator belongs to a smart …

Taut domains in transversely isotropic electro-magneto-active thin membranes

A Khurana, D Kumar, AK Sharma, G Zurlo… - International Journal of …, 2022 - Elsevier
Actuation devices made of smart polymers typically show various instabilities, which can
adversely affect their performance and lead to device failure. In general, smart polymers …

[HTML][HTML] Electromechanical stability of wrinkled dielectric elastomers

A Khurana, MM Joglekar, G Zurlo - International Journal of Solids and …, 2022 - Elsevier
Thin dielectric elastomers with compliant electrodes can experience two types of instability:
wrinkling, which occurs to relax in-plane compressive stresses through out-of-plane …

Electromechanical performance of dielectric elastomer composites: Modeling and experimental characterization

A Kumar, A Khurana, AK Patra, Y Agrawal… - Composite …, 2023 - Elsevier
Dielectric Elastomer (DE) devices have gained widespread attention in recent years for their
ability to generate large, reversible strains in response to electric actuation. However, some …

An energy-based model of dielectric elastomer minimum energy structures with stiffeners: Equilibrium configuration and the electromechanical response

A Khurana, AK Patra, MM Joglekar - Mechanics of Advanced …, 2023 - Taylor & Francis
Abstract The Dielectric Elastomer-based Minimum Energy Structures (DEMES) pertain to an
equilibrium configuration attained by the assembly of a pre-stretched electroactive polymer …

Dynamics of pneumatically coupled visco-hyperelastic dielectric elastomer actuators: Theoretical modeling and experimental investigation

A Kumar, A Khurana, AK Sharma… - European Journal of …, 2022 - Elsevier
Dielectric elastomers represent a class of electroactive polymers that are capable of
undergoing large reversible deformations when driven electrically. Pneumatically connected …

An equivalent spring-based model to couple the motion of visco-hyperelastic dielectric elastomer with the confined compressible fluid/air mass

A Kumar, A Khurana, AK Sharma… - International Journal of …, 2022 - Elsevier
Soft materials exhibiting large voltage-induced deformation under external stimuli have
gained increasing attention in the recent past owing to their potential applications in soft …