Use of foil strain gauges in ice over a wide loading rate
The use of general purpose bonded resistance foil gauges has been examined for measuring small strain in both laboratory made pure ice and natural Arctic sea ice. A method for mounting the gauges on ice has been developed. Experiments were carried out under uniaxial loading conditions in a wide stre...
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1989
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ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:20386333 2024-01-07T09:41:42+01:00 Use of foil strain gauges in ice over a wide loading rate Sinha, N. K. 1989-02 text https://nrc-publications.canada.ca/eng/view/ft/?id=2455c3e7-6dc0-4943-92bb-f3455dd0c506 https://nrc-publications.canada.ca/eng/view/object/?id=2455c3e7-6dc0-4943-92bb-f3455dd0c506 https://nrc-publications.canada.ca/fra/voir/objet/?id=2455c3e7-6dc0-4943-92bb-f3455dd0c506 eng eng issn:0165-232X Cold Regions Science and Technology, Volume: 16, Issue: 2, Publication date: 1989-02, Pages: 145–58 report_number:IRC-P-1584 ice glace (gel) strain déformation measuring devices dispositif de mesure general purpose bonded resistance foil gauges small strain measurement pure ice natural arctic sea ice mounting on ice uniaxial loading conditions wide stress rate range displacement gauge comparisons effective modulus of ice article 1989 ftnrccanada 2023-12-10T00:02:20Z The use of general purpose bonded resistance foil gauges has been examined for measuring small strain in both laboratory made pure ice and natural Arctic sea ice. A method for mounting the gauges on ice has been developed. Experiments were carried out under uniaxial loading conditions in a wide stress rate range of 1 x 10 [-3] to 1.25 x 10 [2] MN m [-2] s [-1] at -20!C and the responses of the foil gauges were compared with those of a displacement gauge also mounted on the ice. Observations indicated that the foil gauges can be used reliably for stress rates less than 1 x 10 [-1] MN m [- 2] s [-1]. Analysis of the system indicates that weak bond at the interface between the gauge carrier and the adhesive layer of ice results in damped response of the gauges and limits their use at higher loading rates. This test series has also provided, for the first time, experimental data on the dependence of effective modulus of ice on stress rate up to 1.2 x 10 [2] MN m [-2] s [-1] or a frequency of about 100 Hz. L'auteur a étudié l'utilisation d'extensomètres à feuille de résistance adhérents universels pour la mesure des petites déformations dans la glace pure fabriquée en laboratoire et dans la glace de mer naturelle de l'Arctique. Il a mis au point une méthode de montage des jauges sur la glace. Des expériences ont été faites, dans des conditions de chargement uniaxial, dans une large plage de vitesse de sollicitation de 1 x 10 [-3] à 1,25 x 10 [2] MNm [-2] s [- 1] à -20 deg. C, et les réponses des extensomètres à feuille ont été comparées à celles d'une jauge de déplacement, aussi montée sur la glace. Les observation ont révélé qu'on pouvait se fier aux extensomètres à feuille lorsque les vitesses de sollicitation sont inférieurs à 1 x 10 [-1] MN m [-2] s[-1]. L'analyse du système indique que la faible adhérence à l'interface porte-jauges et limite leur utilisation à des vitesses de chargement plus élevées. Cette série d'essais a aussi permis d'obtenir pour la première fois des données expérimentales concernant la ... Article in Journal/Newspaper Arctic Sea ice National Research Council Canada: NRC Publications Archive Arctic |
institution |
Open Polar |
collection |
National Research Council Canada: NRC Publications Archive |
op_collection_id |
ftnrccanada |
language |
English |
topic |
ice glace (gel) strain déformation measuring devices dispositif de mesure general purpose bonded resistance foil gauges small strain measurement pure ice natural arctic sea ice mounting on ice uniaxial loading conditions wide stress rate range displacement gauge comparisons effective modulus of ice |
spellingShingle |
ice glace (gel) strain déformation measuring devices dispositif de mesure general purpose bonded resistance foil gauges small strain measurement pure ice natural arctic sea ice mounting on ice uniaxial loading conditions wide stress rate range displacement gauge comparisons effective modulus of ice Sinha, N. K. Use of foil strain gauges in ice over a wide loading rate |
topic_facet |
ice glace (gel) strain déformation measuring devices dispositif de mesure general purpose bonded resistance foil gauges small strain measurement pure ice natural arctic sea ice mounting on ice uniaxial loading conditions wide stress rate range displacement gauge comparisons effective modulus of ice |
description |
The use of general purpose bonded resistance foil gauges has been examined for measuring small strain in both laboratory made pure ice and natural Arctic sea ice. A method for mounting the gauges on ice has been developed. Experiments were carried out under uniaxial loading conditions in a wide stress rate range of 1 x 10 [-3] to 1.25 x 10 [2] MN m [-2] s [-1] at -20!C and the responses of the foil gauges were compared with those of a displacement gauge also mounted on the ice. Observations indicated that the foil gauges can be used reliably for stress rates less than 1 x 10 [-1] MN m [- 2] s [-1]. Analysis of the system indicates that weak bond at the interface between the gauge carrier and the adhesive layer of ice results in damped response of the gauges and limits their use at higher loading rates. This test series has also provided, for the first time, experimental data on the dependence of effective modulus of ice on stress rate up to 1.2 x 10 [2] MN m [-2] s [-1] or a frequency of about 100 Hz. L'auteur a étudié l'utilisation d'extensomètres à feuille de résistance adhérents universels pour la mesure des petites déformations dans la glace pure fabriquée en laboratoire et dans la glace de mer naturelle de l'Arctique. Il a mis au point une méthode de montage des jauges sur la glace. Des expériences ont été faites, dans des conditions de chargement uniaxial, dans une large plage de vitesse de sollicitation de 1 x 10 [-3] à 1,25 x 10 [2] MNm [-2] s [- 1] à -20 deg. C, et les réponses des extensomètres à feuille ont été comparées à celles d'une jauge de déplacement, aussi montée sur la glace. Les observation ont révélé qu'on pouvait se fier aux extensomètres à feuille lorsque les vitesses de sollicitation sont inférieurs à 1 x 10 [-1] MN m [-2] s[-1]. L'analyse du système indique que la faible adhérence à l'interface porte-jauges et limite leur utilisation à des vitesses de chargement plus élevées. Cette série d'essais a aussi permis d'obtenir pour la première fois des données expérimentales concernant la ... |
format |
Article in Journal/Newspaper |
author |
Sinha, N. K. |
author_facet |
Sinha, N. K. |
author_sort |
Sinha, N. K. |
title |
Use of foil strain gauges in ice over a wide loading rate |
title_short |
Use of foil strain gauges in ice over a wide loading rate |
title_full |
Use of foil strain gauges in ice over a wide loading rate |
title_fullStr |
Use of foil strain gauges in ice over a wide loading rate |
title_full_unstemmed |
Use of foil strain gauges in ice over a wide loading rate |
title_sort |
use of foil strain gauges in ice over a wide loading rate |
publishDate |
1989 |
url |
https://nrc-publications.canada.ca/eng/view/ft/?id=2455c3e7-6dc0-4943-92bb-f3455dd0c506 https://nrc-publications.canada.ca/eng/view/object/?id=2455c3e7-6dc0-4943-92bb-f3455dd0c506 https://nrc-publications.canada.ca/fra/voir/objet/?id=2455c3e7-6dc0-4943-92bb-f3455dd0c506 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_relation |
issn:0165-232X Cold Regions Science and Technology, Volume: 16, Issue: 2, Publication date: 1989-02, Pages: 145–58 report_number:IRC-P-1584 |
_version_ |
1787422498321596416 |