Results 41 to 50 of about 4,357 (279)
Modeling and simulation of liquid-crystal elastomers
Physical Review E, 2011 We consider a continuum model describing the dynamic behavior of nematic liquid crystal elastomers (LCEs) and implement a numerical scheme to solve the governing equations. In the model, the Helmholtz free energy and Rayleigh dissipation are used, within a Lagrangian framework, to obtain the equations of motion. The free energy consists of both elastic
Zhu, Wei +2 more
openaire +4 more sources
Biomimetic Prosthetic Hand Enabled by Liquid Crystal Elastomer Tendons
Micromachines, 2021 As one of the most important prosthetic implants for amputees, current commercially available prosthetic hands are still too bulky, heavy, expensive, complex and inefficient.
Haiqing Lu +5 more
doaj +1 more source
Elasticity of polydomain liquid crystal elastomers [PDF]
Journal of the Mechanics and Physics of Solids, 2012 We model polydomain liquid-crystal elastomers by extending the neo-classical soft and semi-soft free energies used successfully to describe monodomain samples. We show that there is a significant difference between polydomains cross-linked in homogeneous high symmetry states then cooled to low symmetry polydomain states and those cross-linked directly ...
Biggins, J. S. +2 more
openaire +3 more sources
A Programmable Liquid Crystal Elastomer Metamaterials With Soft Elasticity
Frontiers in Robotics and AI, 2022 Liquid crystal elastomers (LCEs) are a rubbery network of polymers with ordered liquid crystal mesogens. The combination of rubber elasticity and the anisotropic liquid crystalline order gives exceptional mechanical properties, like soft elasticity ...
Xudong Liang, Dongfeng Li
doaj +1 more source
Materials & Design, 2021 Thermomechanically active shape-programmable elastomer microparticles are very promising for development of particulate composites with unique operational properties, which could be attractive for various applications, e.g., in 3D printing.
Saide Umerova +5 more
doaj +1 more source
Dynamic self-stiffening in liquid crystal elastomers [PDF]
Nature Communications, 2013 Biological tissues have the remarkable ability to remodel and repair in response to disease, injury and mechanical stresses. Synthetic materials lack the complexity of biological tissues, and man-made materials that respond to external stresses through a permanent increase in stiffness are uncommon. Here we report that polydomain nematic liquid crystal
Agrawal, Aditya +7 more
openaire +3 more sources
Polymer-dispersed liquid crystal elastomers as moldable shape-programmable material
Nature Communications, 2023 Development of Soft shape-memory materials is often limited to the synthesis of two-dimensional specimens and rely on bending mechanisms and scaffolding topology to perform three-dimensional morphing.
Matej Bobnar +8 more
doaj +1 more source
Light‐Driven Folding Liquid Crystal Elastomer Catapult with Improved Morphing Velocity
Advanced Intelligent Systems, 2023 As a typical behavior of releasing energy in a short time, catapulting is a way for organisms to adapt to complex and changeable environments, such as crossing terrain obstacles and spreading seeds.
Bing Lei +4 more
doaj +1 more source
Effects of carbon nanotubes on the isotropic to nematic phase transition in nematic liquid crystal elastomer [PDF]
The isotropic to nematic phase transition on nematic liquid crystal elastomer - carbon nanotubes composites has been studied theoretically. The model free energy density has been constructed using Flory Huggins theory of isotropic mixing and Landau-de ...
Prabir K. Mukherjee
core +1 more source
Ultra tough and high resilience mechanochromic fibres for real world stress detection
Nature CommunicationsCholesteric liquid crystal elastomer fibres gain considerable attention as promising candidates for mechanochromic smart textiles across various domains, ranging from fashion to healthcare.
Yu Jin Jeong +5 more
doaj +1 more source