Results 111 to 120 of about 4,357 (279)

Constitutive Modeling of Patterned Liquid Crystal Elastomer for Active Flow Control [PDF]

, 2017
Patterned liquid crystal elastomer (LCE) has been shown to have significant promise in surface topography control. Large and diverse shapes and surface adaptive responses have been shown using LCE materials with patterned director profiles. Using various
Timothy White, Richard Beblo, Michael Settle, Tyler Guin, Gregory Reich   +4 more
core   +1 more source

Numerical Modeling of Photothermal Self‐Excited Composite Oscillators

Advanced Robotics Research, EarlyView.
We present a numerical framework for simulating photothermal self‐excited oscillations. The driving mechanism is elucidated by highlighting the roles of inertia and overshoot, as well as the phase lag between the thermal moment and the oscillation angle, which together construct the feedback loop between the system state and the environmental stimulus.
Zixiao Liu, Ryan R. Rusch, Zheng Wu, Chi Chen, Pengju Shi, Hao Qiu, Ximin He   +6 more
wiley   +1 more source

Hybrid Continuum Robot Designs and Architectures for Healthcare Applications

Advanced Robotics Research, EarlyView.
Hybrid continuum robots represent an emerging class of flexible manipulators that blend materials, structures, and actuation concepts from the established fields of soft and continuum robotics. This review introduces an accessible framework to distinguish key hybridization approaches, surveys current designs aimed at complex clinical applications, and ...
Burak Ozdemir, Muhammad A. Khalid, Manish Chauhan, Pietro Valdastri, James H. Chandler   +4 more
wiley   +1 more source

Memory effects in liquid crystal elastomers [PDF]

, 1991
Free-standing monodomain liquid crystal elastomer samples are shown to have a complete memory of the orientational configuration at the time of cross-linking. This memory is demonstrated through samples in which the parent polymer system is first aligned
C. H. Legge, G. R. Mitchell, F. J. Davis, Legge, C.H., Davis, F.J., Mitchell, G.R.   +5 more
core   +1 more source

Multimodal and Multistimuli 4D-Printed Magnetic Composite Liquid Crystal Elastomer Actuators. [PDF]

ACS Appl Mater Interfaces
Liquid crystal elastomer (LCE)-based soft actuators are being studied for their significant shape-changing abilities when they are exposed to heat or light.
Espíndola-Pérez ER, Campo J, Sánchez-Somolinos C.   +2 more
europepmc   +3 more sources

Continuum mechanics of line defects in liquid crystals and liquid crystal elastomers

Quarterly of Applied Mathematics, 2013
This paper generalizes the Ericksen-Leslie continuum model of liquid crystals to allow for dynamically evolving line defect distributions. In analogy with recent mesoscale models of dislocations, we introduce fields that represent defects in orientational and positional order through the incompatibility of the director and deformation ‘gradient’ fields.
Acharya, Amit, Dayal, Kaushik
openaire   +1 more source

Functional Fibers in Soft Robotics: Advances in Material, Structural, and Systemic Tactics

Advanced Robotics Research, EarlyView.
Fiber‐form robotic systems offer a scalable pathway toward embodied intelligence in soft robotics. This review surveys functional fibers as material, structural, and systemic elements, highlighting advances in responsive materials, architectural programing, and fabrication strategies.
Joonhee Won, Jaehyun Jang, Hyeonseo Kim, Inyoung Choi, Steve Park, Seongjun Park   +5 more
wiley   +1 more source

Light-fueled self-rotation of a liquid crystal elastomer rod enabled by lateral constraint

Theoretical and Applied Mechanics Letters
Recent experiments have found that a liquid crystal elastomer (LCE) rod supported in the middle can rotate continuously under horizontal illumination due to the combined impacts of gravity and light-fueled lateral bending deformation.
Kai Li, Pengsen Xu, Lin Zhou
doaj   +1 more source

Strategic Design of Soft Actuators in Translational Medical Robotics for Human‐Centered Healthcare

Advanced Robotics Research, EarlyView.
Soft robotics enables biocompatible, compliant medical devices, but clinical translation requires design‐driven engineering beyond materials. This perspective reviews implantable, surgical, and wearable systems by actuation mechanism, highlighting how optimized architectures and integration improve mechanical interfacing, adaptability, and durability ...
Ho Jun Jin, Jimin Kim, Inho Kim, Bong Hoon Kim   +3 more
wiley   +1 more source

Reconfigurable Liquid Crystal Elastomer Director Patterns for Multi-Mode Shape Morphing

Crystals
Liquid crystal elastomers (LCEs) are a monolithic material with programmable three-dimensional (3D) morphing modes stemming from their designable non-uniform molecular orientations (or director).
Xianbing Zeng, Tianfeng Zhou, Lei Li, Juncai Song, Ruijue Duan, Xiang Xiao, Baiqian Xu, Guanghao Wu, Yubing Guo   +8 more
doaj   +1 more source