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Evaluation of Nanoscale Deformation Fields from Phase Field Crystal Simulations

Hallberg, Håkan LU orcid and Blixt, Kevin LU (2022) In Metals 12(10).
Abstract
Different methods for evaluation of displacement and strain fields based on phase field crystal (PFC) simulations are shown. Methods originally devised for molecular dynamics (MD) simulations or analysis of high-resolution microscopy images are adapted to a PFC setting, providing access to displacement and strain fields for systems of discrete atoms, such as in MD, as well as to continuous deformation fields. The latter being achieved by geometrical phase analysis. As part of the study, the application of prescribed non-affine deformations in a 3D structural PFC (XPFC) setting is demonstrated as well as an efficient numerical scheme for evaluation of PFC phase diagrams, such as, for example, those required to stabilize solid/liquid... (More)
Different methods for evaluation of displacement and strain fields based on phase field crystal (PFC) simulations are shown. Methods originally devised for molecular dynamics (MD) simulations or analysis of high-resolution microscopy images are adapted to a PFC setting, providing access to displacement and strain fields for systems of discrete atoms, such as in MD, as well as to continuous deformation fields. The latter being achieved by geometrical phase analysis. As part of the study, the application of prescribed non-affine deformations in a 3D structural PFC (XPFC) setting is demonstrated as well as an efficient numerical scheme for evaluation of PFC phase diagrams, such as, for example, those required to stabilize solid/liquid coexistence. The present study provides an expanded toolbox for using PFC simulations as a versatile numerical method in the analysis of material behavior at the atomic scale. (Less)
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author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Metals
volume
12
issue
10
article number
1630
publisher
MDPI AG
external identifiers
  • scopus:85140884665
ISSN
2075-4701
DOI
10.3390/met12101630
project
Phase Field Crystal Modeling of Microstructure Mechanics
language
English
LU publication?
yes
id
7fa00cc3-2ab0-4750-8155-204ea4f9ea1c
date added to LUP
2022-10-24 12:57:42
date last changed
2023-04-09 19:19:36
@article{7fa00cc3-2ab0-4750-8155-204ea4f9ea1c,
  abstract     = {{Different methods for evaluation of displacement and strain fields based on phase field crystal (PFC) simulations are shown. Methods originally devised for molecular dynamics (MD) simulations or analysis of high-resolution microscopy images are adapted to a PFC setting, providing access to displacement and strain fields for systems of discrete atoms, such as in MD, as well as to continuous deformation fields. The latter being achieved by geometrical phase analysis. As part of the study, the application of prescribed non-affine deformations in a 3D structural PFC (XPFC) setting is demonstrated as well as an efficient numerical scheme for evaluation of PFC phase diagrams, such as, for example, those required to stabilize solid/liquid coexistence. The present study provides an expanded toolbox for using PFC simulations as a versatile numerical method in the analysis of material behavior at the atomic scale.}},
  author       = {{Hallberg, Håkan and Blixt, Kevin}},
  issn         = {{2075-4701}},
  language     = {{eng}},
  month        = {{09}},
  number       = {{10}},
  publisher    = {{MDPI AG}},
  series       = {{Metals}},
  title        = {{Evaluation of Nanoscale Deformation Fields from Phase Field Crystal Simulations}},
  url          = {{http://dx.doi.org/10.3390/met12101630}},
  doi          = {{10.3390/met12101630}},
  volume       = {{12}},
  year         = {{2022}},
}