Molecular-dynamics analysis of the rotary field formation in the nanostructure during stretching at a constant deformation velocity

[Display omitted] •The movement of the wave front from the moving clamp is accompanied by the emergence of a rotary field.•The rotary wave movement velocity for this type of load coincides with the elastic wave velocity.•At the movement of the wave front till the moment of reflection from the fixed...

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Bibliographic Details
Published in:Computational materials science 2015-12, Vol.110, p.302-307
Main Authors: Golovnev, Igor F., Golovneva, Elena I., Fomin, Vasily M.
Format: Article
Language:English
Subjects:
Constants
Deformation
Dynamic load
Formations
Fracture mechanics
Internal energy
Mesoanalysis
Metal nanostructures
Molecular dynamics
Molecular-dynamics method
Nanostructure
Rotary field
Stretching
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Summary:[Display omitted] •The movement of the wave front from the moving clamp is accompanied by the emergence of a rotary field.•The rotary wave movement velocity for this type of load coincides with the elastic wave velocity.•At the movement of the wave front till the moment of reflection from the fixed clamp, the momentum value in calculated cells increases with time.•The occurrence of rotary fields significantly contributes to fracture of the structure at speeds higher than 200m/s. Using the method of molecular dynamics, the process of the rotary field formation in a metal nanostructure during its stretching at a constant deformation velocity was calculated. The analysis of the distribution of angular momenta in the space was conducted. The critical role of a rotary wave in the process of material fracture was shown, as the rotary wave energy exceeds 30% of the total internal energy of the structure.
ISSN:0927-0256
1879-0801
DOI:10.1016/j.commatsci.2015.08.012