Abstract
The possibility of nanofragmentation development during the initial relaxation stage in the subsurface layer of a solid after preliminary loading is studied by computer simulation using the molecular dynamics method. It is established that disoriented nanoblocks can form in the initial stage of relaxation. This fragmentation arises in the region of strain localization in the vicinity of stress concentrators and then spreads in depth of the material. In the region of strain localization, the radial distribution function (RDF) of atomic density exhibits smeared maxima corresponding to peaks in the RDF of the ideal fee crystal structure. In the crystal region free of strain localization, the RDF peaks exhibit splitting caused by the strain-induced symmetry breakage. The obtained results suggest that fragmentation is the possible mechanism of relaxation of internal stresses in loaded solids.
| Original language | English |
|---|---|
| Pages (from-to) | 677-678 |
| Number of pages | 2 |
| Journal | Technical Physics Letters |
| Volume | 30 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 1 Aug 2004 |
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- Physics and Astronomy (miscellaneous)
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Molecular-dynamics study of nanofragmentation during relaxation in after-loaded solids. / Dmitriev, A. I.; Psakhie, S. G.
In: Technical Physics Letters, Vol. 30, No. 8, 01.08.2004, p. 677-678.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Molecular-dynamics study of nanofragmentation during relaxation in after-loaded solids
AU - Dmitriev, A. I.
AU - Psakhie, S. G.
PY - 2004/8/1
Y1 - 2004/8/1
N2 - The possibility of nanofragmentation development during the initial relaxation stage in the subsurface layer of a solid after preliminary loading is studied by computer simulation using the molecular dynamics method. It is established that disoriented nanoblocks can form in the initial stage of relaxation. This fragmentation arises in the region of strain localization in the vicinity of stress concentrators and then spreads in depth of the material. In the region of strain localization, the radial distribution function (RDF) of atomic density exhibits smeared maxima corresponding to peaks in the RDF of the ideal fee crystal structure. In the crystal region free of strain localization, the RDF peaks exhibit splitting caused by the strain-induced symmetry breakage. The obtained results suggest that fragmentation is the possible mechanism of relaxation of internal stresses in loaded solids.
AB - The possibility of nanofragmentation development during the initial relaxation stage in the subsurface layer of a solid after preliminary loading is studied by computer simulation using the molecular dynamics method. It is established that disoriented nanoblocks can form in the initial stage of relaxation. This fragmentation arises in the region of strain localization in the vicinity of stress concentrators and then spreads in depth of the material. In the region of strain localization, the radial distribution function (RDF) of atomic density exhibits smeared maxima corresponding to peaks in the RDF of the ideal fee crystal structure. In the crystal region free of strain localization, the RDF peaks exhibit splitting caused by the strain-induced symmetry breakage. The obtained results suggest that fragmentation is the possible mechanism of relaxation of internal stresses in loaded solids.
UR - http://www.scopus.com/inward/record.url?scp=4644363217&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=4644363217&partnerID=8YFLogxK
U2 - 10.1134/1.1792311
DO - 10.1134/1.1792311
M3 - Article
VL - 30
SP - 677
EP - 678
JO - Technical Physics Letters
JF - Technical Physics Letters
SN - 1063-7850
IS - 8
ER -