Elastic instabilities, microstructure transformations, and pattern formations in soft materials

J Li, N Arora, S Rudykh - Current Opinion in Solid State and Materials …, 2021 - Elsevier
Large deformations of soft materials can give rise to the development of various elastic
instabilities. The phenomenon is associated with a sudden and dramatic change in structure …

[HTML][HTML] Single-process 3D-printed stacked dielectric actuator

TB Palmić, J Slavič - International Journal of Mechanical Sciences, 2022 - Elsevier
Single-process additive manufacturing provides fully functional 3D-printed structures in a
single 3D printer without the need for additional manufacturing processes. The 3D-printed …

Macro-and micro-instabilities in incompressible bioinspired composite materials with nacre-like microstructure

F Greco, L Leonetti, U De Maio, S Rudykh… - Composite Structures, 2021 - Elsevier
In this work, we study the macroscopic and microscopic instabilities in 2D incompressible
nacre-like composite materials induced by uniaxial loadings. The interchange between …

[HTML][HTML] Magnetoelastic instabilities in soft laminates with ferromagnetic hyperelastic phases

P Pathak, N Arora, S Rudykh - International Journal of Mechanical Sciences, 2022 - Elsevier
We investigate the microscopic and macroscopic instabilities developing in magnetoactive
elastomer (MAE) composites undergoing large deformations in the presence of an external …

[HTML][HTML] Nonlinear electro-elastic finite element analysis with neural network constitutive models

DK Klein, R Ortigosa, J Martínez-Frutos… - Computer Methods in …, 2024 - Elsevier
In the present work, the applicability of physics-augmented neural network (PANN)
constitutive models for complex electro-elastic finite element analysis is demonstrated. For …

[HTML][HTML] Electrically-induced twist in geometrically incompatible dielectric elastomer tubes

K Bazaev, N Cohen - International Journal of Solids and Structures, 2022 - Elsevier
Dielectric elastomers (DEs) are materials that experience large deformations in response to
electric excitation. In this work, we introduce and investigate a DE-based bi-layer tubular …

Axisymmetric vibration of multilayered electroactive circular plates in contact with fluid

Y Cao, B Wu, E Carrera, S Rudykh, W Chen - Journal of Sound and …, 2024 - Elsevier
Soft electroactive materials (SEAMs), which possess significant advantages over
conventional hard materials, have attracted great attention in recent years. They have been …

Instability-induced patterns and their post-buckling development in soft particulate composites

D Chen, N Arora, Y Xiang, J Li, V Slesarenko… - Mechanics of …, 2022 - Elsevier
In this paper, we investigated elastic instabilities in soft particulate composites under finite
strains. Through our numerical analysis, we find distinct instability modes developing in the …

Snap-through instability in rotating dielectric elastomer tubes

K Li, Y Du, Y Zhang, Y Zhang, C Lü - International Journal of Mechanical …, 2024 - Elsevier
Dielectric elastomers (DEs) have been widely used in soft robotics, high-performance
actuators, and bioengineering. However, they may suffer from more failure modes than pure …

[HTML][HTML] Tunable buckling configurations via in-plane periodicity in soft 3D-fiber composites: Simulations and experiments

N Arora, J Li, S Rudykh - International Journal of Solids and Structures, 2022 - Elsevier
We study the buckling of soft 3D-fiber composites (FCs) with varying in-plane microstructure
periodicity. Through our experiments and simulations, we find that the out-of-plane buckling …