Comparison between experiment and computer modelling of plane-strain simple-shear ice deformation
Abstract An examination of both experiments and computer models of polycrystalline ice undergoing a simple shear suggests that there is good agreement. The model has correctly reproduced the deformational and microstructural features caused by glide on (0001) in the ice aggregates. This success is p...
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Language: | English |
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Cambridge University Press (CUP)
1994
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Online Access: | http://dx.doi.org/10.1017/s0022143000003786 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000003786 |
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crcambridgeupr:10.1017/s0022143000003786 2024-09-15T18:15:38+00:00 Comparison between experiment and computer modelling of plane-strain simple-shear ice deformation Wilson, C.J. L. Zhang, Y. 1994 http://dx.doi.org/10.1017/s0022143000003786 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000003786 en eng Cambridge University Press (CUP) Journal of Glaciology volume 40, issue 134, page 46-55 ISSN 0022-1430 1727-5652 journal-article 1994 crcambridgeupr https://doi.org/10.1017/s0022143000003786 2024-08-07T04:03:38Z Abstract An examination of both experiments and computer models of polycrystalline ice undergoing a simple shear suggests that there is good agreement. The model has correctly reproduced the deformational and microstructural features caused by glide on (0001) in the ice aggregates. This success is particularly prominent for those ice grains with a lattice orientation suitable for hard or easy glide or kinking, and where there is a sub-horizontal с axis and a larger grain-size. A limitation may be that the model cannot explicitly simulate recrystallization and grain-boundary migration, which are two other important processes operating jointly with glide in experimentally deformed ice. However, through the use of the models, it is possible to show how kinematic factors can control the processes of recrystallization. The localization of recrystallization in the polycrystalline ice aggregate is determined by the stress and strain variations between neighbouring grains. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 40 134 46 55 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract An examination of both experiments and computer models of polycrystalline ice undergoing a simple shear suggests that there is good agreement. The model has correctly reproduced the deformational and microstructural features caused by glide on (0001) in the ice aggregates. This success is particularly prominent for those ice grains with a lattice orientation suitable for hard or easy glide or kinking, and where there is a sub-horizontal с axis and a larger grain-size. A limitation may be that the model cannot explicitly simulate recrystallization and grain-boundary migration, which are two other important processes operating jointly with glide in experimentally deformed ice. However, through the use of the models, it is possible to show how kinematic factors can control the processes of recrystallization. The localization of recrystallization in the polycrystalline ice aggregate is determined by the stress and strain variations between neighbouring grains. |
format |
Article in Journal/Newspaper |
author |
Wilson, C.J. L. Zhang, Y. |
spellingShingle |
Wilson, C.J. L. Zhang, Y. Comparison between experiment and computer modelling of plane-strain simple-shear ice deformation |
author_facet |
Wilson, C.J. L. Zhang, Y. |
author_sort |
Wilson, C.J. L. |
title |
Comparison between experiment and computer modelling of plane-strain simple-shear ice deformation |
title_short |
Comparison between experiment and computer modelling of plane-strain simple-shear ice deformation |
title_full |
Comparison between experiment and computer modelling of plane-strain simple-shear ice deformation |
title_fullStr |
Comparison between experiment and computer modelling of plane-strain simple-shear ice deformation |
title_full_unstemmed |
Comparison between experiment and computer modelling of plane-strain simple-shear ice deformation |
title_sort |
comparison between experiment and computer modelling of plane-strain simple-shear ice deformation |
publisher |
Cambridge University Press (CUP) |
publishDate |
1994 |
url |
http://dx.doi.org/10.1017/s0022143000003786 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000003786 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 40, issue 134, page 46-55 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000003786 |
container_title |
Journal of Glaciology |
container_volume |
40 |
container_issue |
134 |
container_start_page |
46 |
op_container_end_page |
55 |
_version_ |
1810453530289373184 |