Euler critical stress σ_cr = π²·E·I / (L² · A) - the classical buckling limit for a pin-ended stiffened panel.
Formula
$$ \sigma_\text{cr} = \frac{\pi^2 E I}{L^2 A} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $E$ | Young’s modulus steel ≈ 206 GPa | GPa | material |
| $I$ | Second moment of area | mm⁴ per mm width | cross-section |
| $A$ | Cross-section area | mm² per mm width | cross-section |
| $L$ | Panel length | mm | geometry |
Sources
- IACS CSR-H Appendix 1.2.