Flexural strength equation for sea ice

• Published in: Cold Regions Science and Technology
• Main Authors: Timco, G. W., O'Brien, S.
• Format: Article in Journal/Newspaper
• Language: English
• Published: 1994
• Subjects: Sea ice
• Online Access: https://doi.org/10.1016/0165-232X(94)90006-X; https://nrc-publications.canada.ca/eng/view/object/?id=aed4d954-9d55-4e05-96f1-7334d22f5e90; https://nrc-publications.canada.ca/fra/voir/objet/?id=aed4d954-9d55-4e05-96f1-7334d22f5e90

The measured flexural strengths of freshwater ice and sea ice have been compiled with a view towards correlating the measured results. Two thousand, four hundred and ninety-five experimentally measured data points from nineteen investigators have been used. This correlation has been done as input for a new system being developed to quickly characterize sea ice properties. The results indicate a very good correlation (r2= 0.77) between the flexural strength ([sigma]f) and the brine volume ([nu]b) with a functional form [sigma]f = 1.76 e-5.88[radical sign][nu]b where the flexural strength is in MPa, and the brine volume is expressed as a brine volume fraction. The value of 1.76 MPa for zero brine volume is in excellent agreement with the average value (1.73 MPa) measured for freshwater ice. NRC publication: Yes