Corrugated Bulkhead - Section Modulus

Section modulus of a unit corrugation in a vertical corrugated cargo-hold bulkhead - the primary scantling check per CSR-BC Part 1.

BulkheadCorrugatedScantling

Web height ammFlange breadth cmmCorrugation angle φdegFlange thicknessmmWeb thicknessmm

Corrugation depth: 606.2mm

Section modulus per corrugation: 6,807.2cm³

Changing the inputs requires JavaScript. The calculator above shows its default inputs and result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

Z = \frac{a \cdot t_f \cdot d + \frac{t_w d^2}{3}}{1000}

Symbol	Meaning	Unit
$a$	Web height	mm
$c$	Flange breadth	mm
$\varphi$	Corrugation angle	deg
$t_f$ , $t_w$	Face / web thickness	mm

Source: IACS CSR-BC Part 1 Ch. 3

In short

Section modulus of a unit corrugation in a vertical corrugated cargo-hold bulkhead - the primary scantling check per CSR-BC Part 1.

Learn the theory Hull Strength and Longitudinal Bending