Language selection

Government of Canada / Gouvernement du Canada

Search

Confined compressive strength of sea ice

From National Research Council Canada

Download
  1. (PDF, 807 KiB)
AuthorSearch for: ; Search for: 1
Affiliation
  1. National Research Council of Canada
FormatText, Article
ConferenceThe Seventh International Conference on Port and Ocean Engineering under Arctic Conditions, POAC 83, April 5, 1983, Helsinki, Finland
Subjectice; compressive strength; particle size distribution; Beaufort Sea; vertical (a-type) and lateral (b-type) ice confinement conditions; ice structure effects; granular ice; columnar ice; basal-plane glide; plasticity theory; plane strain; plane stress; yield surface; freshwater ice comparison
Abstract
The confined compressive strength has been measured for both vertical (A-type) and lateral (B-type) confinement conditions for sea ice from the Beaufort Sea. The results show that the confined compressive strength is extremely sensitive to the structure of the ice. For granular ice, the confined compressive strength for both A and B type confinement is 19% higher than for unconfined compressive strength. For columnar ice, the compressive strength for A- type confinement can be four times as high as the strength of unconfined or B-type confined compressive strength. These results are explained in terms of basal-plane glide in the ice. The results of the tests are used to evaluate the coefficients of an n-type yield function from plasticity theory. The functional form of the yield surface for the cases of plane strain and plane stress in the plane of the ice cover are presented and compared to the corresponding functions for freshwater ice.
Publication date
In
  • The Seventh International Conference on Port and Ocean Engineering under Arctic Conditions. POAC 83 1: 243–253.
Series
  • VVT Symposium 27.
LanguageEnglish
Peer reviewedYes
IdentifierDBR-P-1152
NRC numberNRCC 22807
NRC-IRC-570
NPARC number20375311
Export citationExport as RIS
Report a correctionReport a correction (opens in a new tab)
Record identifierd95e8b3b-5cf0-4a0b-86b7-24e92c0ac5da
Record created2012-07-23
Record modified2024-03-22
Date modified: