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The initial creep of columnar-grained ice: part II. Analysis

From National Research Council Canada

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DOIResolve DOI: https://doi.org/10.1139/p65-137
AuthorSearch for: 1
Affiliation
  1. National Research Council of Canada
FormatText, Article
Abstract
Previously undeformed columnar-grained ice exhibits a period of increasing or constant creep rate during the transient creep stage when loaded in simple compression perpendicular to the long axis of the columns. It is shown that this behavior is associated with the formation of small-angle boundaries and internal cracks. Creep strain beyond 0.25% for first load tends to a power-law dependence on time. On reload, specimens exhibit a normal transient creep behavior and have, initially, a lower resistance to deformation than for first load. With deformation, this resistance increases so that the reload creep curves cross the first load curves at about 0.2% creep. For reload, creep strain less than about 0.25% and greater than about 0.2% appears to have a power-law dependence on time with exponent about equal to that for first load.
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  • Canadian Journal of Physics 43, no. 8 (August 1965): 1423–1434.
LanguageEnglish
Peer reviewedYes
IdentifierDBR-RP-261
NRC numberNRCC 8475
NRC-IRC-1317
NPARC number21277615
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Record identifier23993256-178d-4d81-9c24-c09b25edbd7a
Record created2016-05-05
Record modified2024-01-09
Date modified: