Correlating Exported Cauchy Stress Tensor Values with Von Mises values

Using SimScale Post-processing
3

Hi again @felweh!

So both values are calculated at the Gauss points and are extrapolated to the nodes!

There is a difference between SimScale’s workflow and yours:

  1. We first calculate v.Mises and extrapolate it to the nodes

  2. You first extrapolate the Cauchy Stress to the nodes and then calculate the v.Mises stress

In general, there should not be a big difference. If there is, this is definitely an indicator that your mesh is too coarse.

Does that help you? Let us know if you need any further information. Tagging the @fea_squad in here in case you have more specific questions.

Best,

Jousef