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

Eccentric Axial Loading in a Plane of Symmetry01:16

Eccentric Axial Loading in a Plane of Symmetry

705
Eccentric axial loading occurs when an axial load is applied away from the centroidal axis of a structural member. This scenario is common in engineering, where structural elements may not be directly aligned due to various design or functional requirements.
705
First Law: Particles in Two-dimensional Equilibrium01:18

First Law: Particles in Two-dimensional Equilibrium

16.9K
Recall that a particle in equilibrium is one for which the external forces are balanced. Static equilibrium involves objects at rest, and dynamic equilibrium involves objects in motion without acceleration; but it is important to remember that these conditions are relative. For instance, an object may be at rest when viewed from one frame of reference, but that same object would appear to be in motion when viewed by someone moving at a constant velocity.
Newton's first law tells us about...
16.9K
First Law: Particles in One-dimensional Equilibrium01:10

First Law: Particles in One-dimensional Equilibrium

8.5K
Newton's first law of motion states that a body at rest remains at rest, or if in motion, remains in motion at constant velocity, unless acted on by a net external force. It also states that there must be a cause for any change in velocity (a change in either magnitude or direction) to occur. This cause is a net external force. For example, consider what happens to an object sliding along a rough horizontal surface. The object quickly grinds to a halt, due to the net force of friction. If...
8.5K
Plastic Deformations of Members with a Single Plane of Symmetry01:21

Plastic Deformations of Members with a Single Plane of Symmetry

443
When a structural member undergoes plastic deformation due to bending, it is crucial to understand the position of the neutral axis and the stress distribution. This member, characterized by a single plane of symmetry, exhibits a uniform stress distribution, with negative stress above the neutral axis and positive stress below. Notably, the neutral axis does not align with the centroid of the cross-section. This misalignment is typical in cases where the cross-section is not rectangular or...
443
Plastic Deformation in Circular Shafts01:20

Plastic Deformation in Circular Shafts

556
When materials are subjected to forces that surpass their yield strength, they undergo a process known as plastic deformation. This results in a permanent alteration or strain in their structure. This concept can be specifically applied to circular shafts, where the deformation leads to a change in its shape. The precise evaluation of this plastic deformation requires understanding the stress distribution within the circular shaft, which is achieved by calculating the maximum shearing stress in...
556
General Case of Eccentric Axial Loading01:12

General Case of Eccentric Axial Loading

606
Unsymmetrical bending occurs when the bending moment applied to a structural member does not align with its principal axis. This misalignment leads to complex stress distributions and deflection patterns that differ from symmetrical bending, which are essential for designing structures to withstand different loading conditions.
Consider a member subjected to equal and opposite forces that are applied along a line that does not coincide with the member's neutral axis. In unsymmetrical...
606

You might also read

Related Articles

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

Sort by
Same author

Oscillation and light induction of timeless mRNA in the mammalian circadian clock.

The Journal of neuroscience : the official journal of the Society for Neuroscience·1999
Same author

Distributions of nicotinic acetylcholine receptor alpha7 and beta2 subunits on cultured hippocampal neurons.

Neuroscience·1999
Same author

In vitro effects of zinc on markers of bone formation.

Biological trace element research·1999
Same author

Intracameral muramyl dipeptide-induced paracellular permeability associated with decreased glutamate transporter and gamma -glutamyltranspeptidase activities.

Experimental eye research·1999
Same author

Specific regulation of fos family transcription factors in thymocytes at two developmental checkpoints.

International immunology·1999
Same author

A study on continuous low-flow perfusion with low-potassium dextran for donor isolated lung preservation.

Chinese medical journal·1999
Same journal

Tension on dsDNA bound to ssDNA-RecA filaments may play an important role in driving efficient and accurate homology recognition and strand exchange.

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Amplitude-phase coupling drives chimera states in globally coupled laser networks [Phys. Rev. E 91, 040901(R) (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Erratum: Shapes of sedimenting soft elastic capsules in a viscous fluid [Phys. Rev. E 92, 033003 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Erratum: Attenuation of excitation decay rate due to collective effect [Phys. Rev. E 90, 022142 (2014)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Role of connectivity and fluctuations in the nucleation of calcium waves in cardiac cells [Phys. Rev. E 92, 052715 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Lattice Boltzmann approach for complex nonequilibrium flows [Phys. Rev. E 92, 043308 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
See all related articles

Related Experiment Video

Updated: Mar 27, 2026

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures
10:56

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

12.6K

Confined disordered strictly jammed binary sphere packings.

D Chen1, S Torquato2

  • 1Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|January 15, 2016
PubMed
Summary
This summary is machine-generated.

Disordered sphere packings confined between parallel planes show unique properties due to "confinement frustration." Packing fraction and disorder increase with confinement distance, differing from bulk behavior.

More Related Videos

Forming, Confining, and Observing Microtubule-Based Active Nematics
08:37

Forming, Confining, and Observing Microtubule-Based Active Nematics

Published on: January 13, 2023

3.3K
Initial 3D Cell Cluster Control in a Hybrid Gel Cube Device for Repeatable Pattern Formations
05:22

Initial 3D Cell Cluster Control in a Hybrid Gel Cube Device for Repeatable Pattern Formations

Published on: March 21, 2019

6.2K

Related Experiment Videos

Last Updated: Mar 27, 2026

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures
10:56

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

12.6K
Forming, Confining, and Observing Microtubule-Based Active Nematics
08:37

Forming, Confining, and Observing Microtubule-Based Active Nematics

Published on: January 13, 2023

3.3K
Initial 3D Cell Cluster Control in a Hybrid Gel Cube Device for Repeatable Pattern Formations
05:22

Initial 3D Cell Cluster Control in a Hybrid Gel Cube Device for Repeatable Pattern Formations

Published on: March 21, 2019

6.2K

Area of Science:

  • Physics of granular materials
  • Statistical mechanics
  • Materials science

Background:

  • Disordered jammed packings are common in nature and industry.
  • Confinement effects on these packings are less understood than bulk properties.
  • Understanding confined packings is crucial for applications in biology and engineering.

Purpose of the Study:

  • To investigate binary sphere packings confined between parallel hard planes.
  • To generalize the Torquato-Jiao algorithm for creating maximally random jammed (MRJ) packings under confinement.
  • To analyze how confinement geometry and particle size disparity affect packing characteristics.

Main Methods:

  • Utilized a generalized Torquato-Jiao sequential linear programming algorithm.
  • Studied binary sphere packings with varying plane separation distances (H), sphere radius ratios (α), and concentrations (x).
  • Analyzed packing fraction, rattler fraction, disorder metrics (ψ), and hyperuniformity (σ(τ)(2)(R)).

Main Results:

  • Confinement introduces
  • confinement frustration
  • leading to distinct packing behaviors compared to bulk systems.
  • Rattler prevalence increases with confinement and size disparity.
  • Packing fraction and disorder generally increase with plane separation distance (H), with discontinuities indicating phase transitions.
  • Packings exhibit 2D features at small H and approach 3D bulk behavior at large H (>30 large-sphere diameters).
  • Maximum disorder observed at intermediate α and 50-50 concentration.
  • Confined packings show similar hyperuniformity to bulk packings.

Conclusions:

  • Confined sphere packings exhibit unique characteristics driven by confinement and size-disparity frustration.
  • Packing properties are sensitive to confinement geometry, transitioning from 2D to 3D behavior.
  • Findings have implications for biological structures (e.g., structural color) and technological applications like battery design and powder technology.