Nonlinear hybrid continuum–discrete dynamic model of influence of hydrogen concentration on strength of materials

A new nonlinear lattice model for an influence of the hydrogen concentration on the elastic constants of the lattice model of a material is developed. A weakly nonlinear long-wavelength continuum model is considered, and a model nonlinear equation for the dynamics of concentration of hydrogen is obt...

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Veröffentlicht in:Continuum mechanics and thermodynamics 2021-07, Vol.33 (4), p.933-941
Hauptverfasser: Porubov, A. V., Belyaev, A. K., Polyanskiy, V. A.
Format: Artikel
Sprache:eng
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Zusammenfassung:A new nonlinear lattice model for an influence of the hydrogen concentration on the elastic constants of the lattice model of a material is developed. A weakly nonlinear long-wavelength continuum model is considered, and a model nonlinear equation for the dynamics of concentration of hydrogen is obtained asymptotically. The model predicts a decrease in the stiffness coefficient as well as a light local moving increase due to the localized nonlinear concentration wave propagation.
ISSN:0935-1175
1432-0959
DOI:10.1007/s00161-020-00936-7