(3)Horizontal displacement of the floating bodies Figure 6 shows the horizontal displacement of the center of gravity of the floating bodies in the direction of X changing with time for the whole period.
Figure 6 Horizontal displacement in the direction of X changing with time
Figure 7 shows the horizontal displacement of the center of gravity of the floating bodies in the direction of Y changing with time.
Figure 7 Horizontal displacement in the direction of Y changing with time
The largest average displacement in the direction of X was 17.0 cm for floating body C, and the smallest was 11.5 cm for floating body D. The largest average displacement in the direction of Y was 8.7 cm for floating body A, and the smallest was 6.2 cm for floating body C.
3. 3 Physical properties of ice
The three-point flexural test for ice floes was conducted with the span of 65 cm, and the size of the specimens were 6.5 cm × 6.5 cm × 70 cm. Figure 8 shows the relationship between the flexural strength of the ice floes and the ice temperature at the experimental site. The flexural strength of the ice floes was 4 - 7 kgf/cm2.
Figure 9 shows the relationship between the compressive strength of the ice floes and the ice temperature at the experimental site. The compressive strength of the floes were 5 - 20 kgf/cm2, the size of the specimens were 10 cm in diameter and 20 cm in height.
The specimens for both of the tests were made of white ice and their density was 0.8 g/cm3, which was rather small.
