Secondary Stress according to ASME
Secondary Stress according to ASME
(OP)
Hi Guys
I would like to know how to identify and calculate the secondary stress in a pressure vessel using FEM.
Thank!
I would like to know how to identify and calculate the secondary stress in a pressure vessel using FEM.
Thank!





RE: Secondary Stress according to ASME
Now, to answer your question... You are asking a question in regards to how does one categorize (i.e. put into categories of primary, secondary, peak) linearized and classified stresses (membrane, bending, peak). Entire books have been written on this topic, so I will try to provide a concise summary.
FEA will provide you with total stresses. It is your job to first linearize the stresses, then classify the stresses. To do so, you will need to locate valid and validated stress classification lines - guidance on how to do this is provided in ASME Section VIII, Division 2, Part 5, Annex 5-A. Then, based on the nature of the loads (or load ranges) and these classified stresses, you will need to categorize these stresses. Some guidance on how to do this is provided in Table 5.6, but that table is a bit of a mess.
Read and understand the following statements from Part 5:
RE: Secondary Stress according to ASME
Thank for the answer!
When I finish the fem pressure vessel model and I get the result, surely I'll be consult you. If you do not mind!!
Thanks!!!