I have to learn some stuff interesting!!HarryvL wrote: ↑Fri Nov 02, 2018 7:07 pmI ran your example. It took 20 minutes to run. The output object reports a maximum von Mises stress of 292MPa and a maximum equivalent plastic strain (PEEQ) of 0.0091. Clearly these are not consistent with your input values, where at a PEEQ of 0.02 the stress should be 240 MPa. This is because of the extrapolation of stress and strain values to the nodes.

The DAT file is too big to load into my spreadsheet tool, but I am pretty sure that a bit of Python wizardry will show that the von Mises stress in the Gauss (integration) points (to be calculated from the formula below) is perfectly in line with the PEEQ (saved to file) in the same point.

Screenshot from 2018-11-02 20-04-04.png