Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 127-144 |
| Number of pages | 18 |
| Journal | International Journal of Terraspace Science and Engineering |
| Volume | 3 |
| Issue number | 1 |
| Publication status | Published - 1 Dec 2010 |
| Externally published | Yes |
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Keywords
- Interfaces
- Mesomechanics
- Mesoscale stress-strain state
- Polycrystals
- Surface
- Three-dimensional models
ASJC Scopus subject areas
- Engineering(all)
Cite this
Mesomechanical analysis of the deformation behavior of three-dimensional polycrystals. / Romanova, V. A.
In: International Journal of Terraspace Science and Engineering, Vol. 3, No. 1, 01.12.2010, p. 127-144.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Mesomechanical analysis of the deformation behavior of three-dimensional polycrystals
AU - Romanova, V. A.
PY - 2010/12/1
Y1 - 2010/12/1
N2 - 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.
AB - 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.
KW - Interfaces
KW - Mesomechanics
KW - Mesoscale stress-strain state
KW - Polycrystals
KW - Surface
KW - Three-dimensional models
UR - http://www.scopus.com/inward/record.url?scp=84872503116&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84872503116&partnerID=8YFLogxK
M3 - Article
VL - 3
SP - 127
EP - 144
JO - International Journal of Terraspace Science and Engineering
JF - International Journal of Terraspace Science and Engineering
SN - 1943-3514
IS - 1
ER -