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Hull Girder - Deck / Keel Stress

Longitudinal stress at deck and keel from hull-girder bending moment and midship section modulus - the first post-processing step after SWBM calculation.

Hull girderStressSWBM
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Formula, assumptions, and limits

σ=MZ\sigma = \frac{M}{Z}
SymbolMeaningUnit
MMTotal bending momentkN·m
ZZSection modulus at fibre

Source: IACS UR S11

In short

Longitudinal stress at deck and keel from hull-girder bending moment and midship section modulus - the first post-processing step after SWBM calculation.

Learn the theory Hull Strength and Longitudinal Bending