thschrader wrote: ↑
Tue May 08, 2018 5:01 pm
In paraview you can enable the S1/S2/S3 stress plots. What does that mean?
S1/S2/S3 are the so called "Principal Stresses".
Stress tensor (result from ccx: sxx,syy,szz,txy,...) describes stress components at a particular point (integration point of element).
All components are aligned to global coord system.
If you rotate this tensor (jaw, pitch, roll), one can find a orientation, where shear stresses disappear (= 0) and on the other hand normal stresses become their min/max. values.
Max. normal stress is called S1 and min. normal stress is called S3.
S2 is in between and is orientated normal to S1 and normal to S3
Positive values are tension, neg. values are compression.
So for not reinforced concrete you have to look for places, where S1 becomes positive values (tension).