Mechanical behaviour and structure of snow under uniaxial tensile stress
Abstract The mechanical behaviour of snow was studied at — 10°C under uniaxial tensile stress in a range of cross-head speed 6.8 × 10 –8 to 3.1 × 10 –4 ms –1 and snow density 240-470 kg m –3 .It was found from the resisting force-deformation curves that the snow was deformed in two different ways: n...
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Language: | English |
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Cambridge University Press (CUP)
1980
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Online Access: | http://dx.doi.org/10.1017/s0022143000010819 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000010819 |
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crcambridgeupr:10.1017/s0022143000010819 2024-09-15T18:15:37+00:00 Mechanical behaviour and structure of snow under uniaxial tensile stress Narita, Hidek 1980 http://dx.doi.org/10.1017/s0022143000010819 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000010819 en eng Cambridge University Press (CUP) Journal of Glaciology volume 26, issue 94, page 275-282 ISSN 0022-1430 1727-5652 journal-article 1980 crcambridgeupr https://doi.org/10.1017/s0022143000010819 2024-08-28T04:03:41Z Abstract The mechanical behaviour of snow was studied at — 10°C under uniaxial tensile stress in a range of cross-head speed 6.8 × 10 –8 to 3.1 × 10 –4 ms –1 and snow density 240-470 kg m –3 .It was found from the resisting force-deformation curves that the snow was deformed in two different ways: namely, brittle and ductile deformation at high and low strain-rates, respectively. The critical strain-rate dividing the two deformation modes was found to depend on the density of snow. In ductile deformation, many small cracks appeared throughout the entire specimen. Their features were observed by making thin sections and they were compared with small cracks formed in natural snow on a mountain slope. The maximum strength of snow was found to depend on strain-rate: at strain-rates above about 10 –5 s –1 , the maximum strength increased with decreasing strain-rate but below 10 –5 s –1 it decreased with decreasing strain-rate. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 26 94 275 282 |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract The mechanical behaviour of snow was studied at — 10°C under uniaxial tensile stress in a range of cross-head speed 6.8 × 10 –8 to 3.1 × 10 –4 ms –1 and snow density 240-470 kg m –3 .It was found from the resisting force-deformation curves that the snow was deformed in two different ways: namely, brittle and ductile deformation at high and low strain-rates, respectively. The critical strain-rate dividing the two deformation modes was found to depend on the density of snow. In ductile deformation, many small cracks appeared throughout the entire specimen. Their features were observed by making thin sections and they were compared with small cracks formed in natural snow on a mountain slope. The maximum strength of snow was found to depend on strain-rate: at strain-rates above about 10 –5 s –1 , the maximum strength increased with decreasing strain-rate but below 10 –5 s –1 it decreased with decreasing strain-rate. |
format |
Article in Journal/Newspaper |
author |
Narita, Hidek |
spellingShingle |
Narita, Hidek Mechanical behaviour and structure of snow under uniaxial tensile stress |
author_facet |
Narita, Hidek |
author_sort |
Narita, Hidek |
title |
Mechanical behaviour and structure of snow under uniaxial tensile stress |
title_short |
Mechanical behaviour and structure of snow under uniaxial tensile stress |
title_full |
Mechanical behaviour and structure of snow under uniaxial tensile stress |
title_fullStr |
Mechanical behaviour and structure of snow under uniaxial tensile stress |
title_full_unstemmed |
Mechanical behaviour and structure of snow under uniaxial tensile stress |
title_sort |
mechanical behaviour and structure of snow under uniaxial tensile stress |
publisher |
Cambridge University Press (CUP) |
publishDate |
1980 |
url |
http://dx.doi.org/10.1017/s0022143000010819 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000010819 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 26, issue 94, page 275-282 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000010819 |
container_title |
Journal of Glaciology |
container_volume |
26 |
container_issue |
94 |
container_start_page |
275 |
op_container_end_page |
282 |
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1810453479543537664 |