Open-Deck Torsion - Containership
Warping + St. Venant torsional stiffness for an open-deck containership - determines warping restraint at stool / bulkhead.
Torsional shear stress
44.4N/mm²
Formula, assumptions, and limits
Large open-hold containerships have low torsional stiffness - hatch-corner deflection causes stack loads. Torsion box + HH hatch coaming raise stiffness.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Torsional moment | kN·m | load case | |
| Torsional section modulus | m³ | FE analysis |