Bioinspired Morphing Mechanisms for Soft Systems: A Review

O Rabaux, C Jérôme - Advanced Intelligent Systems, 2024 - Wiley Online Library
Throughout evolution, plants have developed a number of strategies to induce movement
ensuring the survival and reproduction of their species. Carnivorous plants feed by trapping …

A generalized geometric mechanics theory for multi-curve-fold origami: vertex constrained universal configurations

Z Wen, P Lv, F Feng, H Duan - Journal of the Mechanics and Physics of …, 2024 - Elsevier
Folding paper along curves leads to spatial structures that have curved surfaces meeting at
spatial creases, defined as curve-fold origami. In this work, we provide an Eulerian …

Arbitrary curvature programming of thermo-active liquid crystal elastomer via topology optimization

W Li, XS Zhang - Computer Methods in Applied Mechanics and …, 2023 - Elsevier
Plants can change their morphology upon environmental variations such as temperature.
Inspired by plants' morphological adaptability, we present a computational inverse design …

Discontinuous metric programming in liquid crystalline elastomers

TS Hebner, RGA Bowman, D Duffy… - … Applied Materials & …, 2023 - ACS Publications
Liquid crystalline elastomers (LCEs) are shape-changing materials that exhibit large
deformations in response to applied stimuli. Local control of the orientation of LCEs spatially …

A constitutive model of liquid crystal elastomers with loading-history dependence

J Wu, Y Xiao, Y Zhang, D Fang - Journal of the Mechanics and Physics of …, 2023 - Elsevier
Liquid crystal elastomers (LCEs) are a class of active polymers of increasing interest,
because of their excellent actuation performances. To quantify the actuation performances …

Design of origami structures with curved tiles between the creases

H Liu, RD James - Journal of the Mechanics and Physics of Solids, 2024 - Elsevier
An efficient way to introduce elastic energy that can bias an origami structure toward desired
shapes is to allow curved tiles between the creases. The bending of the tiles supplies the …

Geometry, mechanics and actuation of intrinsically curved folds

F Feng, K Dradrach, M Zmyślony, M Barnes, JS Biggins - Soft Matter, 2024 - pubs.rsc.org
We combine theory and experiments to explore the kinematics and actuation of intrinsically
curved folds (ICFs) in otherwise developable shells. Unlike origami folds, ICFs are not …

Multiple shapes from a single nematic elastomer sheet activated via patterned illumination

A Giudici, A Clement, DL Duffy, MR Shankar… - Europhysics …, 2022 - iopscience.iop.org
Liquid crystal elastomers (LCEs) undergo a large uniaxial contraction upon thermal or
optical stimulation. LCE sheets are often fabricated with a spatially patterned direction of …

Bistability and equilibria of creased annular sheets and strips

T Yu - International Journal of Solids and Structures, 2022 - Elsevier
A creased thin disk is generally bistable since the crease could be pushed through to form a
stable cone-like inverted state with an elastic singularity corresponding to the vertex of the …

Programming evolution of geometry in shape-morphing sheets via spatiotemporal activation

D Duffy, I Griniasty, J Biggins, C Mostajeran - arXiv preprint arXiv …, 2024 - arxiv.org
Shape-programmed sheets morph from one surface into another upon activation by stimuli
such as illumination, and have attracted much interest for their potential engineering …