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 Shearing Stresses01:20

Elastic Strain Energy for Shearing Stresses

635
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...
635
Elastic Strain Energy for Normal Stresses01:22

Elastic Strain Energy for Normal Stresses

710
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...
710
Stability of Equilibrium Configuration: Problem Solving01:13

Stability of Equilibrium Configuration: Problem Solving

1.2K
The stability of equilibrium configurations is an important concept in physics, engineering, and other related fields. In simple terms, it refers to the tendency of an object or system to return to its equilibrium position after being disturbed. The stability of an equilibrium configuration can be analyzed by considering the potential energy function of the system and examining its behavior near the equilibrium point.
Problem-solving in the context of the stability of equilibrium configuration...
1.2K
Static Equilibrium - II01:07

Static Equilibrium - II

10.5K
Static equilibrium is a special case in mechanics that is very important in everyday life. It occurs when the net force and the net torque on an object or system are both zero. This means that both the linear and angular accelerations are zero. Thus, the object is at rest, or its center of mass is moving at a constant velocity. However, this does not mean that no forces are acting on the object within the system. In fact, there are very few scenarios on Earth in which no forces are acting upon...
10.5K
Members Made of Elastoplastic Material01:19

Members Made of Elastoplastic Material

519
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...
519
Circular Shafts - Elastoplastic Materials01:24

Circular Shafts - Elastoplastic Materials

605
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...
605

You might also read

Related Articles

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

Sort by
Same author

Space-resolved dynamic light scattering within a millimeter-sized drop: From Brownian diffusion to the swelling of hydrogel beads.

Physical review. E·2024
Same author

A double rigidity transition rules the fate of drying colloidal drops.

Soft matter·2023
Same author

Rearrangement Zone around a Crack Tip in a Double Self-Assembled Transient Network.

ACS macro letters·2022
Same author

Effects of the blade shape on the slicing of soft gels.

The European physical journal. E, Soft matter·2021
Same author

Randomness and Irreversiblity in Quantum Mechanics: A Worked Example for a Statistical Theory.

Entropy (Basel, Switzerland)·2021
Same author

Spinning elastic beads: a route for simultaneous measurements of the shear modulus and the interfacial energy of soft materials.

Soft matter·2020
Same journal

Erratum: Bacterial Turbulence at Compressible Fluid Interfaces [Phys. Rev. Lett. 136, 138301 (2026)].

Physical review letters·2026
Same journal

Unveiling Light-Quark Yukawa Flavor Structure via Dihadron Fragmentation at Lepton Colliders.

Physical review letters·2026
Same journal

Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols.

Physical review letters·2026
Same journal

Topological Transition and Emergence of Elasticity of Dislocation in Skyrmion Lattice: Beyond Kittel's Magnetic-Polar Analogy.

Physical review letters·2026
Same journal

Pound-Drever-Hall Method for Superconducting-Qubit Readout.

Physical review letters·2026
Same journal

Coupling a ^{73}Ge Nuclear Spin to an Electrostatically Defined Quantum Dot in Silicon.

Physical review letters·2026
See all related articles

Related Experiment Video

Updated: Apr 21, 2026

Magnetically Induced Rotating Rayleigh-Taylor Instability
06:42

Magnetically Induced Rotating Rayleigh-Taylor Instability

Published on: March 3, 2017

10.2K

Gravity driven instability in elastic solid layers.

Serge Mora1, Ty Phou2, Jean-Marc Fromental2

  • 1Laboratoire de Mécanique et de Génie Civil, UMR 5508, Université Montpellier 2 and CNRS, Place Eugène Bataillon, F-34095 Montpellier Cedex, France.

Physical Review Letters
|November 8, 2014
PubMed
Summary
This summary is machine-generated.

The free surface of a downward-facing soft elastic solid becomes unstable, forming patterns when gravitational forces overcome elastic forces. This instability is linked to reduced Rayleigh wave speed in gels.

More Related Videos

Studying Large Amplitude Oscillatory Shear Response of Soft Materials
06:07

Studying Large Amplitude Oscillatory Shear Response of Soft Materials

Published on: April 25, 2019

13.9K
Impacts of Free-falling Spheres on a Deep Liquid Pool with Altered Fluid and Impactor Surface Conditions
08:49

Impacts of Free-falling Spheres on a Deep Liquid Pool with Altered Fluid and Impactor Surface Conditions

Published on: February 17, 2019

7.1K

Related Experiment Videos

Last Updated: Apr 21, 2026

Magnetically Induced Rotating Rayleigh-Taylor Instability
06:42

Magnetically Induced Rotating Rayleigh-Taylor Instability

Published on: March 3, 2017

10.2K
Studying Large Amplitude Oscillatory Shear Response of Soft Materials
06:07

Studying Large Amplitude Oscillatory Shear Response of Soft Materials

Published on: April 25, 2019

13.9K
Impacts of Free-falling Spheres on a Deep Liquid Pool with Altered Fluid and Impactor Surface Conditions
08:49

Impacts of Free-falling Spheres on a Deep Liquid Pool with Altered Fluid and Impactor Surface Conditions

Published on: February 17, 2019

7.1K

Area of Science:

  • Physics
  • Materials Science
  • Fluid Dynamics

Background:

  • The behavior of soft elastic solids under gravitational stress is not fully understood.
  • Instabilities in materials can lead to pattern formation and altered properties.

Purpose of the Study:

  • To investigate the instability of the free surface of a downward-facing soft elastic solid.
  • To determine the critical conditions under which surface patterns emerge.

Main Methods:

  • Experiments were conducted using a gel of constant density (ρ) and shear modulus (μ) in a cylindrical dish.
  • The gel was inverted, subjecting its free surface to gravitational acceleration (g).
  • Observations focused on surface flatness versus pattern formation based on the dimensionless parameter ρgh/μ.

Main Results:

  • The gel's free surface remained flat when ρgh/μ was less than a critical value (α* ≃ 6).
  • A steady surface pattern spontaneously formed when ρgh/μ exceeded α*.
  • The phenomenon arises from the interplay between gravitational and elastic energies.

Conclusions:

  • A critical ratio of gravitational to elastic energy drives surface pattern formation in soft elastic solids.
  • This interplay reduces and ultimately eliminates the celerity of Rayleigh waves at the instability threshold.