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Display shell stresses-Von-Mises stress

Display shell stresses-Von-Mises stress

Display shell stresses-Von-Mises stress

(OP)
Regarding to Von-Mises stress of Shell in Sap2000, When I run load combination with Linear category, the Von-Mises stress is normal value (see Picture 1), but when I run Load combination with Envelope category,the Von-Mises stress is seem equal Zero (see Picture 2). Thanks in advance.

RE: Display shell stresses-Von-Mises stress

Consider the definition of Von Mises Stress criterion. Is it reasonable to 'envelope' this value over multiple load combinations?

RE: Display shell stresses-Von-Mises stress

(OP)
Thank you for answering my problem, it seems right as you said. However, I still have not found a solution, I hope to receive your suggestions.

RE: Display shell stresses-Von-Mises stress

The solution is that you have to view VonMises for a single load case at a time that does not include envelope of any other load cases.

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