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Stresseq vs stress magnitude

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Old   October 14, 2010, 09:53
Default Stresseq vs stress magnitude
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As can be seen from the 2 pics, 1 is stresseq the other 1 is stress magnitude.

As I have manage to identify stresseq is = von mises theory.

The peak stress value for stresseq and stress magnitude seems to be quite close, roughly different by 20-30%. I guess it should be some of the failure theory.
But I have no idea what is stress magnitude about? I need to know what theory is stress magnitude represent?

Any idea identifying the theory represents stress magnitude as shown?

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File Type: jpg 2.jpg (45.6 KB, 16 views)
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Old   October 14, 2010, 12:02
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If you google "magnitude of a tensor" you will be able to find out how it is calculated.
As far as I know there is no physical interpretation behind the magnitude of the sigma tensor, paraview just gives you the option of finding the magnitude of vector/tensor fields.

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