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

Series R—L Circuit Transients01:22

Series R—L Circuit Transients

159
In a series resistor-inductor (R-L) circuit, closing the switch at the start of the time period simulates a three-phase short circuit, a fault condition where all three phases of an unloaded synchronous machine are short-circuited. When there is no fault impedance and no initial current, the initial voltage is determined by the phase angle of the source voltage.
Using Kirchhoff's Voltage Law (KVL) to analyze this circuit helps determine the total asymmetrical fault current, which consists...
159
Zones of Protection01:16

Zones of Protection

368
In power systems, the entire setup is divided into protective zones to isolate faults and protect the rest of the network. These zones include generators, transformers, buses, transmission lines, distribution lines, and motors. Each zone can be visualized as a separate room in a house, with each room protected by its own circuit breaker.
Protective zones are defined by closed dashed lines, containing one or more components. A key characteristic of these zones is the strategic placement of...
368
Reclosers and Fuses01:26

Reclosers and Fuses

170
Automatic circuit reclosers enhance the protection of distribution circuits by interrupting and auto-reclosing an AC circuit according to a preset sequence. They effectively manage temporary faults on overhead distribution lines, often caused by tree limbs or wildlife, by briefly disrupting service to improve overall reliability. However, contact with reclosers or energized broken conductors on the ground can pose serious hazards.
A comprehensive protection scheme for radial distribution...
170
Fault Types01:18

Fault Types

130
When analyzing a single line-to-ground fault from phase A to ground at a three-phase bus, it is important to consider the fault impedance. This impedance is zero for a bolted fault, equal to the arc impedance for an arcing fault, and represents the total fault impedance for a transmission-line insulator flashover. To derive sequence and phase currents, fault conditions are translated from the phase domain to the sequence domain.
For line-to-line faults occurring between phases B and C, the...
130
Network Function of a Circuit01:25

Network Function of a Circuit

408
Frequency response analysis in electrical circuits provides vital insights into a circuit's behavior as the frequency of the input signal changes. The transfer function, a mathematical tool, is instrumental in understanding this behavior. It defines the relationship between phasor output and input and comes in four types: voltage gain, current gain, transfer impedance, and transfer admittance. The critical components of the transfer function are the poles and zeros.
408
Transition Zone01:28

Transition Zone

154
The transition zone in concrete is a critical area where aggregate meets cement paste, marked by a distinct porosity and weakness compared to the surrounding material. The adhesion around the aggregates is primarily due to Van Der Waals forces. The voids within this zone influence its robustness; initially, it is less durable than the surrounding bulk mortar due to larger voids. Initially, when concrete is compacted, a higher water-cement ratio near the aggregates leads to the formation of...
154

You might also read

Related Articles

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

Sort by
Same author

Probing the microscopic origin of toughness in multiple polymer networks.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Sustainable treatment of banana leaves for phytosanitary applications: impact, spreading, and impregnation of mineral oil.

Pest management science·2026
Same author

X-ray Reflectivity Probing the Structural Evolution of Sunflower Proteins Adsorbed at the Air-Water Interface.

Langmuir : the ACS journal of surfaces and colloids·2024
Same author

Ductile-to-brittle transition and yielding in soft amorphous materials: perspectives and open questions.

Soft matter·2024
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

Scaling Properties of Gelling Systems in Nonlinear Shear Experiments.

ACS macro letters·2024
Same journal

Multitargeted Degradation of Cell Surface Receptors by Modular Glyco-Nanosheets.

ACS macro letters·2026
Same journal

Vinyl Ether Maleic Anhydride Copolymers: Efficient and Reusable Sorbents for Removing Heavy Metals from Water.

ACS macro letters·2026
Same journal

Topology-Preserving Elastic Deformation Augmentation Enables Robust Defect Detection in Data-Scarce Industrial Imagery.

ACS macro letters·2026
Same journal

Flexible Porous Organic Polymers with α,β-Enone-Linkage via AlCl<sub>3</sub>-Catalyzed Horner-Wadsworth-Emmons Polymerization for Pd Recovery.

ACS macro letters·2026
Same journal

Light-Controlled Topology Switching Enables Continuous Modulation of Thermally Induced Phase Behavior in Polymer Solutions.

ACS macro letters·2026
Same journal

Correction to "Light-Induced Transformation from Covalent to Supramolecular Polymer Networks".

ACS macro letters·2026
See all related articles

Related Experiment Video

Updated: Sep 21, 2025

Spontaneous Formation and Rearrangement of Artificial Lipid Nanotube Networks as a Bottom-Up Model for Endoplasmic Reticulum
07:49

Spontaneous Formation and Rearrangement of Artificial Lipid Nanotube Networks as a Bottom-Up Model for Endoplasmic Reticulum

Published on: January 22, 2019

8.0K

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

Guillaume Foyart1, Christian Ligoure1, Serge Mora2

  • 1Laboratoire Charles Coulomb UMR 5221, CNRS, Université de Montpellier, F-34095 Montpellier, France.

ACS Macro Letters
|June 5, 2022
PubMed
Summary
This summary is machine-generated.

Cracks in viscoelastic fluids nucleate based on deformation rate for single networks. Double networks show micelle rearrangement and ductility increases with slower crack propagation.

More Related Videos

In Situ Time-dependent Dielectric Breakdown in the Transmission Electron Microscope: A Possibility to Understand the Failure Mechanism in Microelectronic Devices
09:26

In Situ Time-dependent Dielectric Breakdown in the Transmission Electron Microscope: A Possibility to Understand the Failure Mechanism in Microelectronic Devices

Published on: June 26, 2015

8.9K
Rewiring Neuronal Circuits: A New Method for Fast Neurite Extension and Functional Neuronal Connection
10:26

Rewiring Neuronal Circuits: A New Method for Fast Neurite Extension and Functional Neuronal Connection

Published on: June 13, 2017

8.9K

Related Experiment Videos

Last Updated: Sep 21, 2025

Spontaneous Formation and Rearrangement of Artificial Lipid Nanotube Networks as a Bottom-Up Model for Endoplasmic Reticulum
07:49

Spontaneous Formation and Rearrangement of Artificial Lipid Nanotube Networks as a Bottom-Up Model for Endoplasmic Reticulum

Published on: January 22, 2019

8.0K
In Situ Time-dependent Dielectric Breakdown in the Transmission Electron Microscope: A Possibility to Understand the Failure Mechanism in Microelectronic Devices
09:26

In Situ Time-dependent Dielectric Breakdown in the Transmission Electron Microscope: A Possibility to Understand the Failure Mechanism in Microelectronic Devices

Published on: June 26, 2015

8.9K
Rewiring Neuronal Circuits: A New Method for Fast Neurite Extension and Functional Neuronal Connection
10:26

Rewiring Neuronal Circuits: A New Method for Fast Neurite Extension and Functional Neuronal Connection

Published on: June 13, 2017

8.9K

Area of Science:

  • Soft Matter Physics
  • Rheology
  • Materials Science

Background:

  • Viscoelastic fluids composed of surfactant micelles and telechelic polymers exhibit tunable micelle morphology (spherical, rodlike, wormlike).
  • These fluids form transient single or double networks depending on micelle entanglement and length.

Purpose of the Study:

  • To investigate crack nucleation and propagation mechanisms in self-assembled viscoelastic fluids.
  • To understand the role of micelle morphology and network structure on fracture behavior.

Main Methods:

  • Experimental investigation of crack dynamics in viscoelastic fluids with varying micelle morphologies.
  • Analysis of crack tip phenomena using birefringence to probe micelle alignment.

Main Results:

  • Crack nucleation in single networks occurs when deformation rate matches the network relaxation time.
  • Double networks exhibit significant micelle rearrangements during crack propagation.
  • Birefringence at the crack tip reveals a characteristic alignment length (ξ) that increases with slower crack speeds, indicating enhanced ductility.

Conclusions:

  • The study elucidates distinct crack propagation mechanisms in single and double network viscoelastic fluids.
  • Micelle alignment and network ductility are key factors influencing fracture in these soft materials.