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Polar Class Ice-Belt Plate Thickness

Approximate ice-belt plate thickness per IACS UR I2 - scaled from ice design pressure.

PolarIACS I2
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Formula, assumptions, and limits

t=500sPice/σy+tct = 500 \cdot s \cdot \sqrt{P_\text{ice} / \sigma_y} + t_c
SymbolMeaningUnit
ssStiffener spacingm (from mm)
PiceP_\text{ice}Ice design pressureMPa
σy\sigma_yPlate yield strengthN/mm²

Source: IACS UR I2 - Machinery requirements for Polar Class ships

In short

Approximate ice-belt plate thickness per IACS UR I2 - scaled from ice design pressure.

Learn the theory Antarctic Special Area and Polar Code: integrated MARPOL plus SOLAS regime