Uniaxial Compressive Strengths of Artificial Freshwater Ice
The uniaxial compression test was performed on artificial freshwater ice with a precise control-temperature unit compression tester of ice under -5, -10, -15, -20 and-30°C temperatures and strain rates ranging from 10-8 to 10-2 s-1. The loading direction was parallel to ice surface. The results showed that the compressive strength was very sensitive to the strain-rate. The uniaxial compressive strengths reached the maximum value at the ductile-brittle transition region, and the region was gradually close to the lower strain-rate with the decreasing temperature of test. Both the strain-rate and uniaxial compressive strength dependences could be expressed in terms of power function in the relevant ductile range of strain-rate. The tests also revealed that failure stress of ice increases with decreasing of temperature at the same strain rate.
Chaohe Chen, Yong Huang and Guangfan Li
L. M. Zhang et al., "Uniaxial Compressive Strengths of Artificial Freshwater Ice", Advanced Materials Research, Vols. 243-249, pp. 4634-4637, 2011