Pressure vessel analysis and design workbench: load application
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1. When performing local stress calculations for the cylinder nozzles (full model), at both ends of the cylinder: one end is subjected to an axial displacement constraint while the other end is subjected to a pressure-balancing load; or alternatively, pressure-balancing loads are applied to both ends. Which of these two methods is correct? Must the displacement constraint be added? The second force application method is more in line with reality. 2. Why is it generally not necessary to evaluate the local stress under pressure testing in stress analysis design?
The first model is generally used! The second model also requires a constraint on the rotational displacement!