Hull Girder - First Yield Moment

First-yield bending moment of hull girder - minimum bending moment at which any fibre reaches yield, precursor to ultimate-strength M_u.

First yieldHull girderUltimate

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

M_Y = Z \cdot \sigma_Y

Symbol	Meaning	Unit
$Z$	Section modulus at fibre of interest	m³
$\sigma_Y$	Material yield stress	N/mm²

Source: IACS UR S11A / CSR Ch.5

First-yield bending moment of hull girder - minimum bending moment at which any fibre reaches yield, precursor to ultimate-strength M_u.