Principal stress at hydrostatic load

Bug Reports
1

I enclose a test example with one fixed element which is loaded by the temperature. It leads to nonzero normal stresses sxx = syy = szz. According to cgx, principal stresses have same nonzero values ps1=ps2=ps3. But when I open the file for postprocessing in PrePoMax 1.4.0, principal stresses are 0. When some of the normal stresses are different, PrePoMax seems to calculate principal stresses correctly.
1elm_hydrostatic_pressure.zip (26.2 KB)

2

I can confirm this:

princ ppm
princ ppm817×715 21.9 KB

princ cgx
princ cgx984×953 53.3 KB

3

This problem is fixed in the new release version of PrePoMax v1.4.1 dev. The problem occurred in all cases where two or more principal values were the same.

Please confirm that it works so we can close the topic.

4

I can confirm that it’s working correctly now:

new
new855×696 21.2 KB

5

Yes, it now works also for me.