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

Vibrating Concrete01:19

Vibrating Concrete

286
Mechanical vibrators are instrumental in compacting newly poured concrete within formwork and around reinforcements. This process is essential to eliminate trapped air pockets and establish a dense concrete mass. One widely used method is vibrating by internal vibrators, often referred to as a poker vibrator or immersion vibrator. It is rapidly inserted through the full depth of the freshly laid concrete and slightly extends into the layer below it (which remains in a plastic state). Consistent...
286
Damped Oscillations01:07

Damped Oscillations

6.6K
In the real world, oscillations seldom follow true simple harmonic motion. A system that continues its motion indefinitely without losing its amplitude is termed undamped. However, friction of some sort usually dampens the motion, so it fades away or needs more force to continue. For example, a guitar string stops oscillating a few seconds after being plucked. Similarly, one must continually push a swing to keep a child swinging on a playground.
Although friction and other non-conservative...
6.6K
Forced Oscillations01:06

Forced Oscillations

7.4K
When an oscillator is forced with a periodic driving force, the motion may seem chaotic. The motions of such oscillators are known as transients. After the transients die out, the oscillator reaches a steady state, where the motion is periodic, and the displacement is determined.
7.4K
Dynamic Modulus of Elasticity of Concrete01:16

Dynamic Modulus of Elasticity of Concrete

776
The dynamic modulus of elasticity assesses how a concrete structure deforms under impact or dynamic loads. It is typically higher than the static modulus of elasticity, measured under slow, steady loading conditions.
The sonic test is a common method to determine the dynamic modulus. In this test, a concrete beam, sized either 6 x 6 x 30 inches or 4 x 4 x 20 inches, is clamped at its center. Vibrations are initiated at one end of the beam by an electromagnetic exciter unit powered by a...
776
Types of Damping01:20

Types of Damping

7.3K
If the amount of damping in a system is gradually increased, the period and frequency start to become affected because damping opposes, and hence slows, the back and forth motion (the net force is smaller in both directions). If there is a very large amount of damping, the system does not even oscillate; instead, it slowly moves toward equilibrium. In brief, an overdamped system moves slowly towards equilibrium, whereas an underdamped system moves quickly to equilibrium but will oscillate about...
7.3K
Elasticity in Concrete01:20

Elasticity in Concrete

252
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...
252

You might also read

Related Articles

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

Sort by
Same author

Gaussian Process Regression Applied to Atom Probe Tomography Data Reconstruction.

Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·2026
Same author

Engineering Disorder in Droplet Packings through Polydispersity and Adhesion.

ACS applied materials & interfaces·2026
Same author

Convolutional networks can model the functional modulation of the MEG responses associated with feed-forward processes during visual word recognition.

eLife·2025
Same author

Accelerated design of solid bio-based foams for plastics substitutes.

Materials horizons·2024
Same author

An AI-driven multiscale methodology to develop transparent wood as sustainable functional material by using the SSbD concept.

Computational and structural biotechnology journal·2024
Same author

From <i>ex ovo</i> to <i>in vitro</i>: xenotransplantation and vascularization of mouse embryonic kidneys in a microfluidic chip.

Lab on a chip·2024
Same journal

Steady and oscillatory propulsion in reactive swimming droplets.

Soft matter·2026
Same journal

Axial forces in capillary liquid bridges of polymer solutions.

Soft matter·2026
Same journal

Dual-mode pH-programmable enzymatic hydrogel system for on-demand glucose generation.

Soft matter·2026
Same journal

Loading iron(III)porphyrin as the gas/anion binding site into methylated β-cyclodextrin-incorporated polymer hydrogels.

Soft matter·2026
Same journal

Disorder-induced persistent random motion and trapping of microswimmers.

Soft matter·2026
Same journal

Metal-ion induced coacervation of a short peptide under acidic conditions.

Soft matter·2026
See all related articles

Related Experiment Video

Updated: Dec 11, 2025

Microfluidic Fabrication Techniques for High-Pressure Testing of Microscale Supercritical CO2 Foam Transport in Fractured Unconventional Reservoirs
10:06

Microfluidic Fabrication Techniques for High-Pressure Testing of Microscale Supercritical CO2 Foam Transport in Fractured Unconventional Reservoirs

Published on: July 2, 2020

7.2K

Vibration controlled foam yielding.

Oona Rinkinen1, Leevi Viitanen1, Jonatan R Mac Intyre1

  • 1Aalto University, School of Science, Department of Applied Physics, P.O. Box 11100, 00076 Aalto, Finland. leevi.viitanen@aalto.fi jonatan.macintyre@aalto.fi juha.koivisto@aalto.fi antti.puisto@aalto.fi mikko.alava@aalto.fi.

Soft Matter
|August 26, 2020
PubMed
Summary
This summary is machine-generated.

Mechanical vibration prevents foams from jamming by overcoming yield stress. This study models foam yielding using an energy landscape, showing vibration aids flow even at low pressures.

More Related Videos

Microfluidic Devices for Characterizing Pore-scale Event Processes in Porous Media for Oil Recovery Applications
08:38

Microfluidic Devices for Characterizing Pore-scale Event Processes in Porous Media for Oil Recovery Applications

Published on: January 16, 2018

10.8K
Casting Protocols for the Production of Open Cell Aluminum Foams by the Replication Technique and the Effect on Porosity
09:22

Casting Protocols for the Production of Open Cell Aluminum Foams by the Replication Technique and the Effect on Porosity

Published on: December 11, 2014

14.9K

Related Experiment Videos

Last Updated: Dec 11, 2025

Microfluidic Fabrication Techniques for High-Pressure Testing of Microscale Supercritical CO2 Foam Transport in Fractured Unconventional Reservoirs
10:06

Microfluidic Fabrication Techniques for High-Pressure Testing of Microscale Supercritical CO2 Foam Transport in Fractured Unconventional Reservoirs

Published on: July 2, 2020

7.2K
Microfluidic Devices for Characterizing Pore-scale Event Processes in Porous Media for Oil Recovery Applications
08:38

Microfluidic Devices for Characterizing Pore-scale Event Processes in Porous Media for Oil Recovery Applications

Published on: January 16, 2018

10.8K
Casting Protocols for the Production of Open Cell Aluminum Foams by the Replication Technique and the Effect on Porosity
09:22

Casting Protocols for the Production of Open Cell Aluminum Foams by the Replication Technique and the Effect on Porosity

Published on: December 11, 2014

14.9K

Area of Science:

  • Rheology and soft matter physics.
  • Foam dynamics and complex fluid behavior.

Background:

  • Foams exhibit time-independent yield stress, acting as both solid and liquid.
  • Understanding foam flow is crucial for applications in food, cosmetics, and materials science.

Purpose of the Study:

  • To investigate the effect of mechanical vibration on the yielding and flow of 2D dry foams.
  • To develop and validate an analytical model for foam rheology under external perturbation.

Main Methods:

  • Utilizing a Hele-Shaw cell to confine and observe 2D dry foam propagation.
  • Applying controlled mechanical vibrations (0-150 Hz) to manipulate local yielding.
  • Analyzing flow dynamics using digital image correlation software.

Main Results:

  • Foam flow speed directly correlates with vibration frequency and attempts to overcome energy barriers.
  • Vibrated foams maintain flow at low driving pressures where unvibrated foams cease.
  • A Guzman-Arrhenius energy landscape model accurately describes foam yielding behavior.

Conclusions:

  • Foam yield stress behavior under vibration can be explained by a simple energy landscape model.
  • Vibration locally exceeds yield thresholds, preventing static jamming even below the bulk yield point.
  • External perturbations offer a method to control and sustain foam flow.