BV NR526 Plate Buckling (2026)

SDC Verifier supports plate buckling verification according to Bureau Veritas NR526 – Rules on Materials and Welding for the Classification of Marine Units, January 2026, Chapter 2, Appendix 4.

The implementation works directly with sections and plates recognized from the FE model. Using Panel Finder, SDC Verifier can automatically identify plate panels and determine the dimensions required for the verification.

Material properties, plate thickness, stresses, and safety factors are taken directly from the model and load definitions, reducing the need to rebuild input data in separate spreadsheets or manual calculations.

What this implementation checks

• Plate buckling of flat plates according to BV NR526 requirements
• Plate geometry and thickness based on recognized panel dimensions and FE element properties
• Stress states in plate directions, with automatic conversion of FE stresses into the required X, Y, and XY plate directions
• Plate-edge, plate-average, or element-level stresses, depending on the selected calculation settings
• Applicable safety factors based on the selected structure type and load case
• Element-by-element verification where plate thickness varies across the recognized panel

The implementation is intended for flat plates. Curved plates are detected and excluded from this check instead of being evaluated using a flat-plate methodology.