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Preliminary Results of Direct Tension Tests on First-Year Sea Ice Samples

by J. A. Richter-Menge, U.S. Army Cold Regions Research and, Engineering Lab, Hanover, United States,
K. J. Claffey, U.S. Army Cold Regions Research and, Engineering Lab, Hanover, United States,



Document Type: Proceeding Paper

Part of: Cold Regions Engineering

Abstract:

We present the initial results of our tests to determine the tensile behavior of columnar sea ice over a range of temperatures extending from -20 to -3?C and strain rates of 10^-5 and 10^-3 s^-1. The temperature of a test specimen was dictated by its in-situ location within the sheet; samples located near the top of the sheet were tested at the lower temperature. All samples were taken from the horizontal plane of the ice sheet. The maximum stress achieved during a test was most notably influenced by temperature, while loading rate was the primary variable in determining the failure strain and the modulus.

Subject Headings: Sea ice | Load tests | Temperature effects | Thermal loads | Tensile strength | Strain rates | Strain

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