I would like to receive some advice about bending stress classification in the corners of a rectangular or parallelepiped double wall vessel with ligaments. Code: ASME VIII-2 5.5.2 or EN 13445-3 Annex C
From my analysis, this zone can be compared with a flat head - junction to shell from...
According to the standard EN 13445-3:2014, in a pressure vessel with prismatic shape (with square base), membrane and bending stresses at the corners (rounded corners) are classified as primary or secundary?