Finite element analysis of Cauchy-Born approximations to atomistic models
This paper is devoted to a new finite element consistency analysis of Cauchy–Born approximations to atomistic models of crystalline materials in two and three space dimensions. Through this approach new “atomistic Cauchy–Born” models are introduced and analyzed. These intermediate models can be seen...
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| 格式: | Report |
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Unspecified
2011
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| _version_ | 1826295967647793152 |
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| author | Makridakis, C Suli, E |
| author_facet | Makridakis, C Suli, E |
| author_sort | Makridakis, C |
| collection | OXFORD |
| description | This paper is devoted to a new finite element consistency analysis of Cauchy–Born approximations to atomistic models of crystalline materials in two and three space dimensions. Through this approach new “atomistic Cauchy–Born” models are introduced and analyzed. These intermediate models can be seen as first level atomistic/quasicontinuum approximations in the sense that they involve only short-range interactions. The analysis and the models developed herein are expected to be useful in the design of coupled atomistic/continuum methods in more than one dimension. Taking full advantage of the symmetries of the atomistic lattice we show that the consistency error of the models considered both in energies and in dual $W^{1,p}$ type norms is $O(\varepsilon^{2})$, where $\varepsilon$ denotes the interatomic distance in the lattice. |
| first_indexed | 2024-03-07T04:09:07Z |
| format | Report |
| id | oxford-uuid:c73a1a06-806c-403c-8d7c-1560f70944d3 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T04:09:07Z |
| publishDate | 2011 |
| publisher | Unspecified |
| record_format | dspace |
| spelling | oxford-uuid:c73a1a06-806c-403c-8d7c-1560f70944d32022-03-27T06:43:28ZFinite element analysis of Cauchy-Born approximations to atomistic modelsReporthttp://purl.org/coar/resource_type/c_93fcuuid:c73a1a06-806c-403c-8d7c-1560f70944d3Mathematical Institute - ePrintsUnspecified2011Makridakis, CSuli, EThis paper is devoted to a new finite element consistency analysis of Cauchy–Born approximations to atomistic models of crystalline materials in two and three space dimensions. Through this approach new “atomistic Cauchy–Born” models are introduced and analyzed. These intermediate models can be seen as first level atomistic/quasicontinuum approximations in the sense that they involve only short-range interactions. The analysis and the models developed herein are expected to be useful in the design of coupled atomistic/continuum methods in more than one dimension. Taking full advantage of the symmetries of the atomistic lattice we show that the consistency error of the models considered both in energies and in dual $W^{1,p}$ type norms is $O(\varepsilon^{2})$, where $\varepsilon$ denotes the interatomic distance in the lattice. |
| spellingShingle | Makridakis, C Suli, E Finite element analysis of Cauchy-Born approximations to atomistic models |
| title | Finite element analysis of Cauchy-Born approximations to atomistic models |
| title_full | Finite element analysis of Cauchy-Born approximations to atomistic models |
| title_fullStr | Finite element analysis of Cauchy-Born approximations to atomistic models |
| title_full_unstemmed | Finite element analysis of Cauchy-Born approximations to atomistic models |
| title_short | Finite element analysis of Cauchy-Born approximations to atomistic models |
| title_sort | finite element analysis of cauchy born approximations to atomistic models |
| work_keys_str_mv | AT makridakisc finiteelementanalysisofcauchybornapproximationstoatomisticmodels AT sulie finiteelementanalysisofcauchybornapproximationstoatomisticmodels |