High strain-rate compression tests on ice

• Published in: The Journal of Physical Chemistry B
• Main Author: Jones, S. J.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: 1997
• Subjects: Sea ice
• Online Access: https://doi.org/10.1021/jp963162j; https://nrc-publications.canada.ca/eng/view/object/?id=d31b21de-3d53-47c2-9fd1-1ce48fa2770f; https://nrc-publications.canada.ca/fra/voir/objet/?id=d31b21de-3d53-47c2-9fd1-1ce48fa2770f

High-speed uniaxial compression tests were conducted in the strain-rate range 10-1-101 s-1, at -11 C, on freshwater ice and "Baltic" sea ice of mean salinity 2.4 ± 0.7 ppt. Two different testing machines were used to check for machine stiffness effects. The results showed that for both types of ice, the strength, , increased with strain rate, , consistent with a power law, = Am, where A = 8.9 and m = 0.15 for fresh water ice, and A = 6.0 and m = 0.19 for the "Baltic" sea ice. At a strain-rate of 101 s-1, the freshwater ice was a factor of only 1.3 times stronger than the sea ice. Results are compared to literature values at lower strain rates. Peer reviewed: Yes NRC publication: Yes