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

Plastic Deformations01:14

Plastic Deformations

532
It is essential to understand how structural members behave under plastic deformation when the bending stress exceeds the material's yield strength. This state of deformation permanently alters the shape of the member, in contrast to the linear elastic behavior observed before yielding. The strain at any point in the member is expressed in terms of maximum strain. Notably, the neutral axis, which coincides with the centroid during elastic bending, shifts away from the centroid under plastic...
532
Plastic Deformations of Members with a Single Plane of Symmetry01:21

Plastic Deformations of Members with a Single Plane of Symmetry

415
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...
415
Plastic Behavior01:21

Plastic Behavior

639
A material's elastic behavior is characterized by the disappearance of stress once the load is removed, allowing the material to return to its original state. However, when stress surpasses the yield point, yielding commences, marking the onset of plastic deformation or permanent set. This change from elastic to plastic behavior is influenced by the peak stress value and the duration before the load is removed. An intriguing observation occurs when a specimen is loaded, unloaded, and...
639
Typical Model Studies01:30

Typical Model Studies

660
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
660

You might also read

Related Articles

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

Sort by
Same author

Slow endocarditis treated with penicillin.

Revue medicale de la Suisse romande·2010
Same author

Organoselenium Chemistry in Stereoselective Reactions.

Angewandte Chemie (International ed. in English)·2000
Same author

Noise probe of the dynamic phase separation in La(2/3)Ca(1/3)MnO3

Physical review letters·2000
Same author

Lateral diffusion of 1,1'-dioctadecyl-3,3,3'3'-tetramethylindocarbocyanine perchlorate at the interfaces of C18 and chromatographic solvents

Analytical chemistry·2000
Same author

Separation of Tc-99 in soil and plant samples collected around the chernobyl reactor using a Tc-selective chromatographic resin and determination of the nuclide by ICP-MS

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine·2000
Same author

Author reply.

Cancer·2000

Related Experiment Video

Updated: Feb 28, 2026

Author Spotlight: Computing the Effects of a Local Radiofrequency Hyperthermia Intervention on Tumor Biomechanics
10:23

Author Spotlight: Computing the Effects of a Local Radiofrequency Hyperthermia Intervention on Tumor Biomechanics

Published on: December 1, 2023

1.1K

Multiscale modelling of plastic flow localization in irradiated materials

de la Rubia TD1, Zbib, Khraishi

  • 1Lawrence Livermore National Laboratory, Livermore, California 94550, USA. delarubia@llnl.gov

Nature
|September 6, 2000
PubMed
Summary

Energetic particle irradiation degrades metals, causing plastic flow localization. Multiscale simulations reveal defect clusters pin dislocations, leading to unpinning and cross-slip, ultimately limiting plastic channel width.

More Related Videos

Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron
09:41

Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron

Published on: June 9, 2016

13.0K
Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering
09:08

Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering

Published on: February 6, 2014

14.8K

Related Experiment Videos

Last Updated: Feb 28, 2026

Author Spotlight: Computing the Effects of a Local Radiofrequency Hyperthermia Intervention on Tumor Biomechanics
10:23

Author Spotlight: Computing the Effects of a Local Radiofrequency Hyperthermia Intervention on Tumor Biomechanics

Published on: December 1, 2023

1.1K
Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron
09:41

Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron

Published on: June 9, 2016

13.0K
Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering
09:08

Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering

Published on: February 6, 2014

14.8K

Area of Science:

  • Materials Science
  • Nuclear Engineering
  • Computational Physics

Background:

  • Energetic particle irradiation significantly degrades mechanical properties of metals, including increased yield stress and reduced ductility.
  • These effects are critical for nuclear power plant pressure vessels and fusion energy materials, but fundamental mechanisms remain unclear.
  • Plastic flow localization is a key consequence of irradiation, impacting material performance and lifespan.

Purpose of the Study:

  • To elucidate the fundamental mechanisms of plastic flow localization in irradiated metals.
  • To demonstrate the relationship between irradiation fields and observed mechanical property degradation.
  • To reveal the processes governing plastic flow localization in defect-free channels within irradiated metals.

Main Methods:

  • Utilized three-dimensional multiscale simulations.
  • Modeled the behavior of irradiated metals under stress.
  • Investigated dislocation dynamics and interactions with irradiation-induced defects.

Main Results:

  • Observed dislocation pinning by irradiation-induced defect clusters.
  • Demonstrated subsequent dislocation unpinning through defect absorption.
  • Identified cross-slip of dislocations as a stress-dependent mechanism.
  • Found that plastic flow channel width is limited by interactions between dislocation dipoles and defect clusters.

Conclusions:

  • The study reveals the detailed mechanisms of plastic flow localization in irradiated metals.
  • Dislocation dynamics and defect interactions are key to understanding irradiation-induced mechanical property changes.
  • Simulation results provide fundamental insights into material behavior under irradiation, crucial for nuclear and fusion applications.