First-yield bending moment of hull girder - minimum bending moment at which any fibre reaches yield, precursor to ultimate-strength M_u.
Formula
$$ M_Y = Z \cdot \sigma_Y $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $Z$ | Section modulus at fibre of interest | m³ | midship scantling |
| $\sigma_Y$ | Material yield stress | N/mm² | steel grade |
Sources
- IACS UR S11A / CSR Ch.5.