Cellular auxetic structures for mechanical metamaterials: A review

PU Kelkar, HS Kim, KH Cho, JY Kwak, CY Kang… - Sensors, 2020 - mdpi.com
Recent advances in lithography technology and the spread of 3D printers allow us a facile
fabrication of special materials with complicated microstructures. The materials are called …

Bending performance of 3D re-entrant and hexagonal metamaterials

XG Zhang, W Jiang, Y Zhang, D Han, C Luo… - Thin-Walled …, 2023 - Elsevier
Auxetic structures have theoretically superior bending resistance that was previously
inaccessible. Compared with the planar two-dimensional (2D) auxetic structures, the three …

Programmable soft bending actuators with auxetic metamaterials

Q Pan, ST Chen, FF Chen, XY Zhu - Science China Technological …, 2020 - Springer
Soft robotics has been receiving increasing attention due to its flexibility and adaptability
offered by embodied intelligence. A soft robot may undergo complex motions including …

Trimmed helicoids: an architectured soft structure yielding soft robots with high precision, large workspace, and compliant interactions

Q Guan, F Stella, C Della Santina, J Leng, J Hughes - npj Robotics, 2023 - nature.com
The development and use of architectured structures is changing the means by which we
design and fabricate soft robots. These materials utilize their topology and geometry to …

Piece‐By‐Piece Shape‐Morphing: Engineering Compatible Auxetic and Non‐Auxetic Lattices to Improve Soft Robot Performance in Confined Spaces

Y Dikici, H Jiang, B Li, KA Daltorio… - Advanced Engineering …, 2022 - Wiley Online Library
Shape‐morphing capabilities of metamaterials can be expanded by developing approaches
that enable the integration of different types of cellular structures. Herein, a rational material …

Shape Morphing of Tubular Structures with Tailorable Mechanical Properties

Z Zhang, AO Krushynska - Advanced Engineering Materials, 2024 - Wiley Online Library
Tubular structures are in high demand in robotics, medicine, and electronics. They are
expected to match different shapes under loading and simultaneously exhibit certain …

Homogenization of non-rigid origami metamaterials as Kirchhoff–Love plates

SP Vasudevan, PP Pratapa - International Journal of Solids and Structures, 2024 - Elsevier
Origami metamaterials have gained considerable attention for their ability to control
mechanical properties through folding. Consequently, there is a need to develop systematic …

An earthworm-like soft robot with integration of single pneumatic actuator and cellular structures for peristaltic motion

M Liu, Z Xu, JJ Ong, J Zhu, WF Lu - 2020 IEEE/RSJ …, 2020 - ieeexplore.ieee.org
Earthworm-like soft robots have been widely studied for various applications, such as
medical endoscopy and pipeline inspection. Many actuation modes have been chosen to …

Fluid–structure coupling model and experimental validation of interaction between pneumatic soft actuator and lower limb

D Guan, R Liu, C Fei, S Zhao, L Jing - Soft robotics, 2020 - liebertpub.com
Pneumatic soft actuators (PSAs) are components that produce predesigned motion or force
in different end-use devices. PSAs are lightweight, flexible, and compatible in human …

Emergent Sequential Motion Through Compliant Auxetic Shells

A Sedal, M Kohler, G Agbofode… - 2023 IEEE/RSJ …, 2023 - ieeexplore.ieee.org
Though they are compliant, nimble and morpho-logically intelligent, fluidic soft robots often
rely on bulky components for power and actuation. This work contributes a design …