Is it possible that von-mises stress greater than maximum principal stress?

Naveenkumar K S @Naveenkumar_K_S

01 January 2018 1 9K Report

At which situation, von-mises stress is greater than maximum principal stress?

Wu Han

I got similar problem, in my case, I obtained the critical load for two criterion, shows in the figure.

what I want to ask is why the critical load is became higher for Von. mises criterion?

Does it mean that the principal stress reach the yield strength before Von. mises ?

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