Molecular-dynamics study of dynamic vortex defects as the mechanism of relaxation in loaded solids

A. I. Dmitriev, S. G. Psakhie

Research output: Contribution to journalArticle

Abstract

Processes in a loaded solid have been studied by the method of molecular dynamics. It is established that dynamic vortex structures can form both in the stage of active loading and in the stress relaxation stage. In the latter case, atomic displacements can result in the formation of a periodic system of correlated vortex threads. The lifetime of such dynamic defects may reach tens of nanoseconds, while their characteristic dimensions are on the nanometer scale. It is demonstrated that the system of vortex threads can change the sign of the angular velocity so that atomic displacements taking place within different time intervals virtually compensate each other. The formation of analogous dynamic vortexlike structures in the active stage of loading does not exhibit a periodic character.

Original languageEnglish
Pages (from-to)497-499
Number of pages3
JournalTechnical Physics Letters
Volume30
Issue number6
DOIs
Publication statusPublished - 1 Jun 2004

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threads
vortices
molecular dynamics
defects
stress relaxation
angular velocity
intervals
life (durability)

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Molecular-dynamics study of dynamic vortex defects as the mechanism of relaxation in loaded solids. / Dmitriev, A. I.; Psakhie, S. G.

In: Technical Physics Letters, Vol. 30, No. 6, 01.06.2004, p. 497-499.

Research output: Contribution to journalArticle

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