[Geoqus] on Plastic and Failure Strains in Cap Plasticity

[bsaad at po-box.mcgill.ca]

Hello my friends In the section 4.2.1 ABAQUS/Standard output variable 
identifiers:

For cap plasticity: PEQC provides equivalent plastic strains for all 
three possible yield/failure surfaces (Drucker-Prager failure surface - 
PEQC1, cap surface - PEQC2, and transition surface - PEQC3) and the 
total volumetric inelastic strain (PEQC4). All identifiers also provide 
a yes/no flag (1/0 on the output database) telling whether the yield 
surface is currently active or not (AC YIELD: ?actively yielding?).

When PEQC is requested as output to the output database, the active 
yield flags for each component are named AC YIELD1, AC YIELD2, etc. and 
take the value 1 or 0.
.dat: yes    .fil: no    .odb Field: no    .odb History: yes

In this hardening model only PEQC1 indicates that failure takes place
Although, PEQC3 or PEQC2 or PEQC4  indicate that there is plastic 
strian , that doesnot mean failure.
The question is that I cannot get PEQC1 through Field output nor 
History output. I want to get the contour of PEQC1.. Any Idea please
Thanks for support