Shear Force - Quarter-Length Estimate

Still-water shear force at quarter-length for a simplified load case - screening sanity-check before full longitudinal-strength analysis.

ShearSWBMHull girder

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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

Q_{max} \approx \frac{4 M_{max}}{L}

Symbol	Meaning	Unit
$M_{max}$	Maximum bending moment	kN·m
$L$	LBP	m

Source: IACS UR S11

Still-water shear force at quarter-length for a simplified load case - screening sanity-check before full longitudinal-strength analysis.