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Updated: May 25, 2026

Microfluidic Preparation of Liquid Crystalline Elastomer Actuators

Microfluidic Preparation of Liquid Crystalline Elastomer Actuators

Published on: May 20, 2018

Biaxially stretched nematic liquid crystalline elastomers.

R Diaz-Calleja¹, E Riande

¹ITE, Polytechnic University of Valencia, Valencia, Spain. rdiazc@ter.upv.es

The European Physical Journal. E, Soft Matter

|January 18, 2012

Summary

Biaxial stretching of liquid crystalline elastomers reveals laminate structures and multiple deformation possibilities. This behavior mirrors classic elasticity problems and can be altered in anisotropic materials.

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Area of Science:

Materials Science
Solid Mechanics
Polymer Physics

Background:

Liquid crystalline elastomers exhibit unique mechanical properties.
Neo-Hookean models are fundamental in rubber elasticity.
Biaxial stretching is a key test for material behavior.

Purpose of the Study:

Investigate the biaxial stretching of liquid crystalline neo-Hookean elastomer sheets.
Analyze the formation of laminate structures during quasiconvexification.
Explore the implications for deformation gradient decomposition and bifurcation.

Main Methods:

Theoretical analysis of biaxial stretching.
Examination of free energy quasiconvexification.
Comparison with existing elasticity problems (e.g., Rivlin's problem).

Main Results:

Observed two types of laminate structures during stretching.
Identified multiple shear terms in the deformation gradient matrix.
Confirmed bifurcation in the undeformed configuration (λ = 1).

Conclusions:

Biaxial stretching of these elastomers leads to complex structural and deformational behaviors.
The findings align with theoretical predictions for soft materials.
Anisotropic materials show modified elastic responses, losing the soft elasticity plateau.