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https://hdl.handle.net/11681/9296| Title: | Stress measurements in ice |
| Authors: | University of Alaska United States. Minerals Management Service Cox, G. F. N. (Gordon F. N.) Johnson, Jerome B. |
| Keywords: | Cold regions Ice Ice stress Laboratory tests Stress sensors Strains Stresses Ice pressure |
| Publisher: | Cold Regions Research and Engineering Laboratory (U.S.) Engineer Research and Development Center (U.S.) |
| Series/Report no.: | CRREL report ; 83-23. |
| Description: | CRREL Report Abstract: The problems associated with measuring stresses in ice are reviewed. Theory and laboratory test results are then presented for a stiff cylindrical sensor made of steel that is designed to measure ice stress in a biaxial stress field. Loading tests on freshwater and saline ice blocks containing the biaxial ice stress sensor indicate that the sensor has a resolution of 20 kPa and an accuracy of better than 15% under a variety of uniaxial and biaxial loading conditions. Principal stress directions can also be determined within 5°. The biaxial ice stress sensor is not significantly affected by variations in the ice elastic modulus, ice creep or differential thermal expansion between the ice and gauge. The sensor also has a low temperature sensitivity (5 kPa/°C). |
| Rights: | Approved for public release; distribution is unlimited. |
| URI: | http://hdl.handle.net/11681/9296 |
| Appears in Collections: | CRREL Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| CR-83-23.pdf | 4.45 MB | Adobe PDF |  View/Open |