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This is the hallmark feature of Division 2. When vessel geometries are complex, or cyclic loading causes fatigue concerns, standard formulas are insufficient. DBA requires the use of numerical methods, primarily , to model the exact stress distribution. DBA categorizes stresses into three types: asme section 8 div 2 pdf
Compliance with Division 2 requires formal documentation and professional oversight: If you need multiple sections or editions, consider
Division 1 typically uses a design margin (safety factor) of 3.5 against the minimum tensile strength. Division 2 uses a lower design factor of 3.0 (or 2.4 under the Class 2 designation introduced in 2017), which directly reduces the required wall thickness of the vessel. or cyclic loading causes fatigue concerns
Rules for hydrostatic and pneumatic testing.