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 Experiment Videos

Portevin-Le chatelier effect

Franklin1, Mertens, Marder

  • 1Center for Nonlinear Dynamics and Department of Physics, The University of Texas at Austin, Austin, Texas 78712, USA.

Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
|January 4, 2001
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Aeromonas hydrophila causes 'black disease' in fairy shrimps (Anostraca; Crustacea).

Journal of fish diseases·2018
Same author

pH-dependent toxicity of copper and uranium to a tropical freshwater alga (Chlorella sp.).

Aquatic toxicology (Amsterdam, Netherlands)·2001
Same author

Characterization of microsatellite loci in the eastern oyster, crassostrea virginica

Molecular ecology·2000
Same author

Existence of internal modes of sine-gordon kinks

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2000
Same author

Resonances in the dynamics of straight phi(4) kinks perturbed by ac forces

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2000
Same author

Solitons in anharmonic chains with ultra-long-range interatomic interactions

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2000
Same journal

Efficient Monte Carlo simulations using a shuffled nested Weyl sequence random number generator.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2002
Same journal

Spatiotemporal dynamics of electromagnetic pulses in saturating nonlinear optical media with normal group velocity dispersion.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2002
Same journal

Soliton-breather reaction pathways.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2002
Same journal

Calculation of electromagnetic properties of regular and random arrays of metallic and dielectric cylinders.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2002
Same journal

Electromagnetic convective cells in a nonuniform dusty plasma.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2002
Same journal

Stability of neural networks and solitons of field theory.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2002
See all related articles

Researchers developed a new theory explaining the mysterious velocity of Portevin-Le Chatelier fronts in aluminum. This model, based on nonlocal flow stress, accurately predicts deformation front behavior and transitions observed in experiments.

Area of Science:

  • Materials Science
  • Solid Mechanics
  • Condensed Matter Physics

Background:

  • Aluminum deformation under mechanical load is typically inhomogeneous.
  • This inhomogeneous deformation occurs via propagation of Portevin-Le Chatelier fronts.
  • The velocity of these fronts has remained poorly understood.

Purpose of the Study:

  • To develop a phenomenological theory for deformation front velocity.
  • To explain the underlying mechanisms governing Portevin-Le Chatelier front dynamics.
  • To validate the theory through experimental comparison.

Main Methods:

  • Development of a phenomenological theory for deformation fronts.
  • Incorporation of nonlocal rate dependence of flow stress.
  • Exact analytical solutions in a 1D idealization.

Related Experiment Videos

  • Experimental validation of theoretical predictions.

    • Main Results:

    • The theory successfully captures key features of deformation fronts.
    • The model explains the transition from hopping to continuous front motion.
    • Experimental results confirm the predictions of the developed phenomenology.

    Conclusions:

    • A nonlocal rate-dependent flow stress model provides a basis for understanding deformation front velocity.
    • The proposed theory offers a unified explanation for observed phenomena in aluminum plasticity.
    • This work advances the understanding of inhomogeneous deformation mechanisms in metals.