Mesomechanical analysis of the deformation behavior of three-dimensional polycrystals

V. A. Romanova

Результат исследований: Материалы для журналаСтатья

Выдержка

Reviewed are the results of numerical analysis for mesoscale deformation in three-dimensional polycrystals under quasistatic and dynamic loading. The three-dimensional models of polycrystalline microstructures are generated by the step-by-step packing method. The elastic-plastic response of grains is described taking into account the Hall-Petch relation, strain hardening and elastic anisotropy at the mesolevel. A double-limit yield criterion is proposed to describe the nucleation and development of plastic strains in the bulk of grain conglomerates. The role of the free surface and grain boundaries in the evolution of mesoscale deformation is analyzed. A special attention is paid to the analysis of surface relief evolution under uniaxial tension.

Язык оригиналаАнглийский
Страницы (с-по)127-144
Число страниц18
ЖурналInternational Journal of Terraspace Science and Engineering
Том3
Номер выпуска1
СостояниеОпубликовано - 1 дек 2010
Опубликовано для внешнего пользованияДа

Отпечаток

Polycrystals
Strain hardening
Numerical analysis
Plastic deformation
Grain boundaries
Anisotropy
Nucleation
Plastics
Microstructure

ASJC Scopus subject areas

  • Engineering(all)

Цитировать

Mesomechanical analysis of the deformation behavior of three-dimensional polycrystals. / Romanova, V. A.

В: International Journal of Terraspace Science and Engineering, Том 3, № 1, 01.12.2010, стр. 127-144.

Результат исследований: Материалы для журналаСтатья

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