Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Elastic Strain Energy for Normal Stresses01:22

Elastic Strain Energy for Normal Stresses

119
Strain energy quantifies the energy stored within a material due to deformation under loading conditions, a fundamental concept in materials science and engineering. The strain energy can be modeled when a material is subjected to axial loading with uniformly distributed stress. In this scenario, the stress experienced by the material is the internal force divided by the cross-sectional area, and the strain induced is directly proportional to this stress through the modulus of elasticity.
If...
119
Members Made of Elastoplastic Material01:19

Members Made of Elastoplastic Material

92
The behavior of elastoplastic materials under bending stresses, particularly in structural members with rectangular cross-sections, is crucial for predicting material responses and understanding failure modes. Initially, when a bending moment is applied, the stress distribution across the section follows Hooke's Law and is linear and elastic. This distribution means the stress increases from the neutral axis to the maximum at the outer fibers, up to the elastic limit.
As the bending moment...
92
Circular Shafts - Elastoplastic Materials01:24

Circular Shafts - Elastoplastic Materials

88
The study of solid circular shafts under stress shows that within the elastic limit, stress increases directly to the distance from the shaft's center. This relationship holds until the shaft reaches a critical point of stress, beyond which it begins to yield, marking the transition from elastic to plastic deformation. At this crucial juncture, the maximum torque the shaft can endure without permanent deformation is determined, signifying the limit of its elastic behavior.
As torque on the...
88
Elastic Strain Energy for Shearing Stresses01:20

Elastic Strain Energy for Shearing Stresses

136
As discussed in previous lessons, strain energy in a material is the energy stored when it is elastically deformed, a concept crucial in materials science and mechanical engineering. This energy results from the internal work done against the cohesive forces within the material. When a material undergoes shearing stress and corresponding shearing strain, the strain energy density, which is the energy stored per unit volume, is calculated. Within the elastic limit, where the stress is...
136
Elasticity in Concrete01:20

Elasticity in Concrete

72
Upon subjecting concrete to moderate or high uniaxial compressive or tensile stresses, the strain response is non-linear relative to the stress applied. As the stress is removed, the resulting stress-strain curve deviates from the original path traced during loading, creating a hysteresis loop, indicative of the concrete's non-linear and non-elastic properties. Typically, a material's modulus of elasticity, which is a measure of the material's stiffness, is inferred from the linear...
72

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

3D-Printed Dynamic Liquid Crystal Elastomer Composites with Adaptive Reconfiguration Showing Multimodal, Light-Driven, Strider-Inspired Locomotion at the Air-Water Interface.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

State of the Art, Insights and Perspectives for Bio-Inspired Liquid Crystal Elastomer Soft Actuators.

Advanced materials (Deerfield Beach, Fla.)·2025
Same author

Nitrogen and Sulfur Co-Doped Graphene Composite Aerogel Microspheres Supporting Pt Electrode-Catalyzed Methanol Electro-Oxidation Reaction.

ACS applied materials & interfaces·2025
Same author

4D Printing of Shape-Morphing Liquid Crystal Elastomers.

Chem & bio engineering·2025
Same author

Progress in Utilizing Dynamic Bonds to Fabricate Structurally Adaptive Self-Healing, Shape Memory, and Liquid Crystal Polymers.

Macromolecular rapid communications·2021
Same author

Association between ERCC2 Lys751Gln polymorphism and the risk of pancreatic cancer, especially among Asians: evidence from a meta-analysis.

Oncotarget·2017

Related Experiment Video

Updated: May 11, 2025

Microfluidic Preparation of Liquid Crystalline Elastomer Actuators
12:04

Microfluidic Preparation of Liquid Crystalline Elastomer Actuators

Published on: May 20, 2018

8.9K

Self-Sustained Liquid Crystal Elastomer Actuators with Geometric Zero-Elastic-Energy Modes.

Tongzhi Zang1,2, Reyihanguli Muhetaer1, Chun Zhang1

  • 1National Key Laboratory of Advanced Polymer Materials, Polymer Research Institute, Sichuan University, Chengdu, 610065, China.

Macromolecular Rapid Communications
|April 18, 2025
PubMed
Summary

Liquid crystal elastomers (LCEs) with geometric zero-elastic-energy modes (ZEEMs) enable untethered, autonomous movement. This research summarizes ZEEMs in LCE actuators, highlighting their potential for soft robotics and smart materials.

Keywords:
Liquid crystal elastomers (LCEs)actuatorssoft robotszero‐elastic‐energy modes (ZEEMs)

More Related Videos

Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites
12:21

Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites

Published on: February 6, 2016

12.5K
Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale
08:17

Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale

Published on: May 25, 2016

9.2K

Related Experiment Videos

Last Updated: May 11, 2025

Microfluidic Preparation of Liquid Crystalline Elastomer Actuators
12:04

Microfluidic Preparation of Liquid Crystalline Elastomer Actuators

Published on: May 20, 2018

8.9K
Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites
12:21

Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites

Published on: February 6, 2016

12.5K
Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale
08:17

Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale

Published on: May 25, 2016

9.2K

Area of Science:

  • Materials Science
  • Soft Robotics
  • Smart Actuators

Background:

  • Liquid crystal elastomers (LCEs) are advanced materials with unique responsive properties.
  • Geometric zero-elastic-energy modes (ZEEMs) represent a novel actuation mechanism in LCEs.
  • ZEEMs enable LCE actuators to exhibit autonomous movement under external stimuli.

Purpose of the Study:

  • To provide a comprehensive summary of current research on LCE actuators utilizing ZEEMs.
  • To highlight the potential applications of ZEEM-based LCE actuators.
  • To discuss future research directions and prospects in this rapidly developing field.

Main Methods:

  • Review of existing literature on LCEs and ZEEMs.
  • Analysis of the actuation principles behind ZEEMs in LCEs.
  • Identification of key applications and future trends.

Main Results:

  • LCE actuators based on ZEEMs demonstrate untethered and autonomous motion.
  • These actuators show significant potential for intelligent soft robots, energy conversion, and optical tuning.
  • The research synthesizes current findings and identifies promising avenues for development.

Conclusions:

  • ZEEMs offer a powerful actuation strategy for LCEs.
  • LCE actuators leveraging ZEEMs are poised for significant advancements in various technological fields.
  • Further research into ZEEMs will drive innovation in biomimetic materials and soft robotics.