Spontaneous photo-buckling of a liquid crystal elastomer membrane

2021 ◽  
pp. 106473
Author(s):  
Xiao Liu ◽  
Ying Liu
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Elastomer

Modeling of photo-responsive liquid crystal elastomer actuators

2021 ◽  
Vol 560 ◽  
pp. 441-455
Author(s):  
Jundong Wu ◽  
Wenjun Ye ◽  
Yawu Wang ◽  
Chun-Yi Su
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Elastomer

4D Printing of Hygroscopic Liquid Crystal Elastomer Actuators

Small ◽  
2021 ◽  
pp. 2100910
Author(s):  
Keumbee Kim ◽  
Yuanhang Guo ◽  
Jaehee Bae ◽  
Subi Choi ◽  
Hyeong Yong Song ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
4D Printing ◽  
Liquid Crystal Elastomer

Effect of stretching angle on the stress plateau behavior of main-chain liquid crystal elastomers

Soft Matter ◽  
2021 ◽  
Vol 17 (11) ◽  
pp. 3128-3136
Author(s):  
Suzuka Okamoto ◽  
Shinichi Sakurai ◽  
Kenji Urayama
Keyword(s):  
Liquid Crystal ◽  
Main Chain ◽  
Stress Plateau ◽  
Liquid Crystal Elastomer ◽  
Ultimate Elongation ◽  
Liquid Crystal Elastomers

Stretching angle for a main-chain liquid crystal elastomer has pronounced effects on the width of the stress plateau as well as the ultimate elongation, while it has no effect on the plateau height.

Quantification of internal strain in bent soft materials by a cholesteric liquid crystal elastomer

2021 ◽  
Author(s):  
Masayuki Kishino ◽  
Norihisa Akamatsu ◽  
Shoichi Kubo ◽  
Kyohei Hisano ◽  
Osamu Tsutsumi ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Cholesteric Liquid Crystal ◽  
Soft Materials ◽  
Internal Strain ◽  
Liquid Crystal Elastomer

Stress-strain and thermomechanical characterization of nematic to smectic A transition in a strongly-crosslinked bimesogenic liquid crystal elastomer

Polymer ◽  
2018 ◽  
Vol 158 ◽  
pp. 96-102 ◽  
Author(s):  
Andraž Rešetič ◽  
Jerneja Milavec ◽  
Valentina Domenici ◽  
Blaž Zupančič ◽  
Alexey Bubnov ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Stress Strain ◽  
Liquid Crystal Elastomer ◽  
Smectic A ◽  
Thermomechanical Characterization

scholarly journals Variational modelling of nematic elastomer foundations

2018 ◽  
Vol 28 (14) ◽  
pp. 2863-2904
Author(s):  
Pierluigi Cesana ◽  
Andrés A. León Baldelli
Keyword(s):  
Liquid Crystal ◽  
Integral Functional ◽  
Elastic Membrane ◽  
Two Dimensional ◽  
Order Tensor ◽  
Asymptotic Regime ◽  
Liquid Crystal Elastomer ◽  
Energy Functionals ◽  
Shear Energy ◽  
Dimensional Integral

We compute the [Formula: see text]-limit of energy functionals describing mechanical systems composed of a thin nematic liquid crystal elastomer sustaining a homogeneous and isotropic elastic membrane. We work in the regime of infinitesimal displacements and model the orientation of the liquid crystal according to the order tensor theories of both Frank and De Gennes. We describe the asymptotic regime by analysing a family of functionals parametrised by the vanishing thickness of the membranes and the ratio of the elastic constants, establishing that, in the limit, the system is represented by a two-dimensional integral functional interpreted as a linear membrane on top of a nematic active foundation involving an effective De Gennes optic tensor which allows for low order states. The latter can suppress shear energy by formation of microstructure as well as act as a pre-strain transmitted by the foundation to the overlying film.

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