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Lower Stool - Required Thickness

Required lower-stool top-plate thickness for a bulk-carrier corrugated bulkhead - a screening sizing formula after Erika / Derbyshire.

BulkheadStoolBulker
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Formula, assumptions, and limits

t=15sp/σt = 15 \cdot s \cdot \sqrt{p / \sigma}
SymbolMeaningUnit
ssSpan of stool-top platem
ppCargo + water pressurekN/m²
σ\sigmaAllowable stressN/mm²

Source: IACS CSR-BC Part 2 Ch 1

In short

Required lower-stool top-plate thickness for a bulk-carrier corrugated bulkhead - a screening sizing formula after Erika / Derbyshire.

Learn the theory Hull Strength and Longitudinal Bending