von Mises vs Tsai-Wu

[whitebalance]

Hi,
I'm trying to find out for what assumptions the von Mises yield criterion equals the Tsai Wu failure criterion.
Say you have a FE tsai-wu plot and a von Mises plot.
Under what circumstances would the color plot look the same?

Is it so that if you assume plane stress and input isotropic material properties into the Tsai-Wu criteria the result will be the same as von Mises yield criteria?

WB

 

[berkshire]

You have already asked that question in forum327. Please avoid double posting or reference your first post.
B.E.

You are judged not by what you know, but by what you can do.