Approximate ice-belt plate thickness per IACS UR I2 - scaled from ice design pressure.
Formula
$$ t = 500 \cdot s \cdot \sqrt{P_\text{ice} / \sigma_y} + t_c $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $s$ | Stiffener spacing | m (from mm) | structural drawing |
| $P_\text{ice}$ | Ice design pressure | MPa | IACS UR I1 table |
| $\sigma_y$ | Plate yield strength | N/mm² | steel grade |
Sources
- IACS UR I2 - Machinery requirements for Polar Class ships.