Flexoelectricity in soft elastomers and the molecular mechanisms underpinning the design and emergence of giant flexoelectricity

M Grasinger, K Mozaffari… - Proceedings of the …, 2021 - National Acad Sciences
Soft robotics requires materials that are capable of large deformation and amenable to
actuation with external stimuli such as electric fields. Energy harvesting, biomedical devices …

Spatial Tuning of Light–Matter Interaction via Strain-Gradient-Induced Polarization in Freestanding Wrinkled 2D Materials

C Cho, Z Zhang, JM Kim, PJ Ma, MF Haque… - Nano Letters, 2023 - ACS Publications
To date, controlled deformation of two-dimensional (2D) materials has been extensively
demonstrated with substrate-supported structures. However, interfacial effects arising from …

Wrinkling to crinkling transitions and curvature localization in a magnetoelastic film bonded to a non-magnetic substrate

E Psarra, L Bodelot, K Danas - Journal of the Mechanics and Physics of …, 2019 - Elsevier
This work studies experimentally and numerically the post-bifurcation response of a
magnetorheological elastomer (MRE) film bonded to a soft non-magnetic (passive) …

Fracture, fatigue, and sliding-wear behavior of nanocomposites of alumina and reduced graphene-oxide

Q Wang, C Ramírez, CS Watts, O Borrero-López… - Acta Materialia, 2020 - Elsevier
There is growing interest in using 2D graphene-related reinforcements to toughen brittle
ceramics in nanocomposites. However, there is a lack of fundamental understanding of the …

The collusion of flexoelectricity and Hopf bifurcation in the hearing mechanism

Q Deng, F Ahmadpoor, WE Brownell… - Journal of the Mechanics …, 2019 - Elsevier
How do the weak sound waves get amplified in a cochlea? This deceptively simple question
has attracted a fair amount of attention and several creative mechanisms have been …

On Inherent Hyperelastic Crease

S Song, M Kothari, KS Kim - Journal of the Mechanics and Physics of Solids, 2024 - Elsevier
We present analyses of the inherent hyperelastic crease that entails an unstable
degenerative singular perturbation field over a uniformly compressed hyperelastic half …

Ruga mechanics of soft-orifice closure under external pressure

H Jin, AK Landauer, KS Kim - Proceedings of the …, 2021 - royalsocietypublishing.org
Here, we report the closure resistance of a soft-material bilayer orifice increases against
external pressure, along with ruga-phase evolution, in contrast to the conventional …

Flexoelectricity-driven periodic buckling in multilayer graphene bonded to compliant substrate

M Kothari, KS Kim - MRS Communications, 2022 - Springer
Flexoelectricity in multilayer graphene (MLG) buckling can stimulate kink-shaped crinkle
formation. In the process, the bifurcation becomes subcritical and the suspended-MLG's …