Comparison of Experimental and Computer Modeling of Snow-Block Impact on Structures
Abstract Data from experimental tests of snow-block impact against vertical barriers are used to establish values of parameters in order to computer-model the impact mechanics. The results show that total impulse, impact force, and duration of impact can be modeled by accurate specification of the k...
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Language: | English |
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Cambridge University Press (CUP)
1986
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Online Access: | http://dx.doi.org/10.1017/s0022143000011989 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000011989 |
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crcambridgeupr:10.1017/s0022143000011989 2024-03-03T08:46:01+00:00 Comparison of Experimental and Computer Modeling of Snow-Block Impact on Structures Mead, Lorraine B. Nakamura, Hideomi Lang, Theodore E. Dent, Jimmie D. 1986 http://dx.doi.org/10.1017/s0022143000011989 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000011989 en eng Cambridge University Press (CUP) Journal of Glaciology volume 32, issue 112, page 321-324 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1986 crcambridgeupr https://doi.org/10.1017/s0022143000011989 2024-02-08T08:42:50Z Abstract Data from experimental tests of snow-block impact against vertical barriers are used to establish values of parameters in order to computer-model the impact mechanics. The results show that total impulse, impact force, and duration of impact can be modeled by accurate specification of the kinematic viscosity in the fluid representation. In modeling the highly transient impact, kinematic viscosity of the material is determined to vary linearly with the impact velocity. This non-physical condition is attributed to lack of accountability of compressibility effects in the computer model, and reduces modeling to an empirical approach. A biviscous modeling of the impact process is in near correspondence to linear viscous modeling, due to dominant importance of block momentum on impact rather than fluidity of material in the impact region. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 32 112 321 324 |
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Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Mead, Lorraine B. Nakamura, Hideomi Lang, Theodore E. Dent, Jimmie D. Comparison of Experimental and Computer Modeling of Snow-Block Impact on Structures |
topic_facet |
Earth-Surface Processes |
description |
Abstract Data from experimental tests of snow-block impact against vertical barriers are used to establish values of parameters in order to computer-model the impact mechanics. The results show that total impulse, impact force, and duration of impact can be modeled by accurate specification of the kinematic viscosity in the fluid representation. In modeling the highly transient impact, kinematic viscosity of the material is determined to vary linearly with the impact velocity. This non-physical condition is attributed to lack of accountability of compressibility effects in the computer model, and reduces modeling to an empirical approach. A biviscous modeling of the impact process is in near correspondence to linear viscous modeling, due to dominant importance of block momentum on impact rather than fluidity of material in the impact region. |
format |
Article in Journal/Newspaper |
author |
Mead, Lorraine B. Nakamura, Hideomi Lang, Theodore E. Dent, Jimmie D. |
author_facet |
Mead, Lorraine B. Nakamura, Hideomi Lang, Theodore E. Dent, Jimmie D. |
author_sort |
Mead, Lorraine B. |
title |
Comparison of Experimental and Computer Modeling of Snow-Block Impact on Structures |
title_short |
Comparison of Experimental and Computer Modeling of Snow-Block Impact on Structures |
title_full |
Comparison of Experimental and Computer Modeling of Snow-Block Impact on Structures |
title_fullStr |
Comparison of Experimental and Computer Modeling of Snow-Block Impact on Structures |
title_full_unstemmed |
Comparison of Experimental and Computer Modeling of Snow-Block Impact on Structures |
title_sort |
comparison of experimental and computer modeling of snow-block impact on structures |
publisher |
Cambridge University Press (CUP) |
publishDate |
1986 |
url |
http://dx.doi.org/10.1017/s0022143000011989 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000011989 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 32, issue 112, page 321-324 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000011989 |
container_title |
Journal of Glaciology |
container_volume |
32 |
container_issue |
112 |
container_start_page |
321 |
op_container_end_page |
324 |
_version_ |
1792501802645585920 |