DNV OS-C201-WSD Weld Strength (2011)

DNV OS-C201-WSD Weld Strength (2011) defines strength checks for welded joints under the Working Stress Design method. SDC Verifier implements Section 9 of the standard to validate:

• Weld geometry: verification of weld dimensions and section properties
• Stress assessment: weld throat stress at both ends
• Utilization checks: for base and weld material under service loads
• Eccentricity correction: for single fillet welds

Unlike LRFD, this WSD-based check uses safety factors derived from η₀ (Table E1), where SF = 1 / η₀. Key parameters include:

• Beta_w: correlation factor (Table C3)
• Gamma_M: constant material resistance factor (= 1.15)
• Stress modeling: throat stress computed in weld-local coordinate system assuming a 0° angle

All weld stress evaluations are derived from defined weld leg lengths and checked against permissible limits. Warnings are flagged when the defined geometry violates minimum requirements.