Dear Engineers, this is the first time I start a new thread, hope it goes well.
I tried to repeat the example given in ASME PTB-3 through Ansys Workbench, but considering 2 models, the first one is a 2D axysimetric and the second one is a 3D model with shell elements and compare their results.
I'm full aware that one must define the stress categorization based on the loads to be considered before of doing the stress analysis.
2D axysimetric: the overall simulation went not that bad, I suppose there were some differences due to the geometry specially at the point between the knuckle radius and the crown radius, in the screenshot attached you'll find in the SCL5 and path (away from discontinuities) membrane stress:19176 psi, membrane+bending:29936 psi (max) and membrane stress:16843 psi, membrane+bending: 17120 psi, respectively. How may I compare those results to the Table E5.2.1-1 given in PTB-3?.
On the other hand, in the 3D model I defined (simply supported and fixed rotation in the base), I placed a path along the shell, from point 1 (at the base) to point 2 in the junction with the head. how can I compare those results to path in 2D axysimetric.
Thank you for your guidance on the subject
I tried to repeat the example given in ASME PTB-3 through Ansys Workbench, but considering 2 models, the first one is a 2D axysimetric and the second one is a 3D model with shell elements and compare their results.
I'm full aware that one must define the stress categorization based on the loads to be considered before of doing the stress analysis.
2D axysimetric: the overall simulation went not that bad, I suppose there were some differences due to the geometry specially at the point between the knuckle radius and the crown radius, in the screenshot attached you'll find in the SCL5 and path (away from discontinuities) membrane stress:19176 psi, membrane+bending:29936 psi (max) and membrane stress:16843 psi, membrane+bending: 17120 psi, respectively. How may I compare those results to the Table E5.2.1-1 given in PTB-3?.
On the other hand, in the 3D model I defined (simply supported and fixed rotation in the base), I placed a path along the shell, from point 1 (at the base) to point 2 in the junction with the head. how can I compare those results to path in 2D axysimetric.
Thank you for your guidance on the subject