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

Strain Energy01:13

Strain Energy

1.2K
Strain energy is a fundamental concept in the field of materials science and structural engineering, describing the energy absorbed by a material or structure when it is deformed under load.
Consider a rod that is fixed at one end and subjected to an axial force at the free end. This axial force induces stress within the rod, leading to its elongation. As the axial force increases, so does the elongation of the rod, illustrating a direct relationship between the force applied and the resulting...
1.2K
Elastic Strain Energy for Shearing Stresses01:20

Elastic Strain Energy for Shearing Stresses

622
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...
622
Elastic Strain Energy for Normal Stresses01:22

Elastic Strain Energy for Normal Stresses

701
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...
701
Three-Dimensional Analysis of Strain01:29

Three-Dimensional Analysis of Strain

734
Three-dimensional strain analysis is crucial for understanding how materials deform under stress, particularly in elastic, homogeneous materials. This method employs principal stress axes to simplify complex stress states into more understandable forms. Subjected to stress, a small cubic element within a material either expands or contracts along these axes, transforming into a rectangular parallelepiped. This transformation effectively illustrates the material's deformation. The principal...
734
Transformation of Plane Strain01:12

Transformation of Plane Strain

624
When analyzing elongated structures like bars subjected to uniformly distributed loads, it is essential to understand the transformation of plane strain when coordinate axes are rotated. This transformation helps to assess how material deformation characteristics vary with orientation, which is crucial in materials science and structural engineering.
Under plane strain conditions, typical for members where one dimension significantly exceeds the others, deformations and resultant strains are...
624
Castigliano's Theorem01:18

Castigliano's Theorem

1.3K
Castigliano's theorem analyzes displacements and rotations in elastic structures. It relates the derivative of elastic strain energy to the applied forces or moments, allowing for the calculation of deformations. The theorem states that the partial derivative of the total strain energy of a system with respect to a specific load results in the displacement at the point where the load is applied. This principle applies to both forces and moments.
1.3K

You might also read

Related Articles

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

Sort by
Same author

[ATM/H2AX and repair of sperm-DNA damage during cryopreservation].

Zhonghua nan ke xue = National journal of andrology·2011
Same author

Predicting accident frequency at their severity levels and its application in site ranking using a two-stage mixed multivariate model.

Accident; analysis and prevention·2011
Same author

Photothermally enhanced photodynamic therapy delivered by nano-graphene oxide.

ACS nano·2011
Same author

[Characteristics of soil respiration in Phyllostachys edulis forest in Wanmulin Natural Reserve and related affecting factors].

Ying yong sheng tai xue bao = The journal of applied ecology·2011
Same author

Quality changes in sea urchin (Strongylocentrotus nudus) during storage in artificial seawater saturated with oxygen, nitrogen and air.

Journal of the science of food and agriculture·2011
Same author

Global effect of an RNA polymerase β-subunit mutation on gene expression in the radiation-resistant bacterium Deinococcus radiodurans.

Science China. Life sciences·2011

Related Experiment Video

Updated: Apr 4, 2026

Gradient Strain Chip for Stimulating Cellular Behaviors in Cell-laden Hydrogel
13:28

Gradient Strain Chip for Stimulating Cellular Behaviors in Cell-laden Hydrogel

Published on: August 8, 2017

8.4K

Motion Driven by Strain Gradient Fields.

Chao Wang1, Shaohua Chen1

  • 1LNM, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China.

Scientific Reports
|September 2, 2015
PubMed
Summary
This summary is machine-generated.

A novel mechanism enables controlled movement of nanoscale objects using a strained graphene strip. This strain gradient generates directional motion, paving the way for advanced nanotechnology applications.

More Related Videos

A Novel Platform for In Vitro Cellular Stretching and Imaging
07:33

A Novel Platform for In Vitro Cellular Stretching and Imaging

Published on: March 10, 2026

122
Live Cell Imaging during Mechanical Stretch
07:42

Live Cell Imaging during Mechanical Stretch

Published on: August 19, 2015

12.6K

Related Experiment Videos

Last Updated: Apr 4, 2026

Gradient Strain Chip for Stimulating Cellular Behaviors in Cell-laden Hydrogel
13:28

Gradient Strain Chip for Stimulating Cellular Behaviors in Cell-laden Hydrogel

Published on: August 8, 2017

8.4K
A Novel Platform for In Vitro Cellular Stretching and Imaging
07:33

A Novel Platform for In Vitro Cellular Stretching and Imaging

Published on: March 10, 2026

122
Live Cell Imaging during Mechanical Stretch
07:42

Live Cell Imaging during Mechanical Stretch

Published on: August 19, 2015

12.6K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Physics

Background:

  • Controlling nanoscale object motion is crucial for advanced manufacturing and devices.
  • Existing methods often lack precision or require complex setups.

Purpose of the Study:

  • To propose and investigate a new mechanism for direction-controlled motion of nanoscale objects.
  • To explore the role of strain gradients in graphene for manipulating nano-objects.

Main Methods:

  • Modeling the stretching of a graphene strip connected to a base via linear springs.
  • Analyzing the potential energy differences induced by strain gradients.
  • Investigating the forces required to overcome friction at the nanoscale.

Main Results:

  • A strain gradient field in graphene can generate forces sufficient to move nanoscale flakes.
  • Motion occurs in the direction of decreasing strain gradient, overcoming friction.
  • Nano-flake dynamics are tunable via spring stiffness, stretching velocity, and flake size.

Conclusions:

  • A fundamental principle for strain gradient-induced directional motion at the nanoscale has been established.
  • This mechanism offers potential for novel nanoscale manipulation, transportation, and smart surface designs.