Stresseq vs stress magnitude

watashiwa · October 14, 2010, 10:53

Hi,

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?

Regards
watashiwa

bigphil · October 14, 2010, 13:02

watashiwa,

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.

Philip

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October 14, 2010, 13:02		#2
bigphil Super Moderator Philip Cardiff Join Date: Mar 2009 Location: Dublin, Ireland Posts: 1,097 Rep Power: 34	watashiwa, 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. Philip