DNV OS-C101-LRFD Weld Strength (2024)

DNV OS-C101-LRFD Weld Strength (2024), based on Chapter 2, Section 5 of the DNV Offshore Structural Design Standard, defines weld strength assessment procedures using Load and Resistance Factor Design (LRFD).

In SDC Verifier, the implementation automates checks for:

• Weld geometry: verification of leg length, section properties
• Stress evaluations: start/end weld throat stress and Von Mises equivalent
• Utilization checks: overall and per-material safety margins
• Eccentricity effects: moment correction for single fillet welds

Key parameters include:

• Beta_w: correlation factor (Table 4)
• Gamma_Mw: weld safety factor (Table 5)
• Gamma_M: material resistance factor (=1.15)
• Minimum weld leg length: validated using tank location context

Weld stress calculations are consistent with DNV guidance, assuming weld angle = 0° and resistance through the weld throat. The software ensures all required material properties (yield/tensile) are present.