The method that Abaqus/CAE uses to combine overlapping facet data in the consolidated data set depends on the
output variable:
-
For the variables CPRESS,
CSHEAR, and
CSLIP, Abaqus/CAE uses the largest value, positive or negative, in the model for the selected
variable.
-
For the variable COPEN, Abaqus/CAE uses the minimum value for contact opening, which can reflect the smallest
opening in the model or, if there are overclosures, the greatest overclosure
value.
-
For the vector variables CNORMF
and CSHEARF, Abaqus/CAE evaluates the sum of all vector values for the individual surface pairs and
stores the resultant vector in the consolidated data set.
-
For the variable CSTATUS, Abaqus/CAE assigns one of four contact statuses to individual nodes on the main and
secondary surfaces.
Abaqus/CAE uses the following settings in the consolidated data set:
- Sticking if any of the overlapping regions are in
contact and sticking,
- Slipping if any of the overlapping regions are in
contact and slipping,
- Bonded if any of the overlapping regions are in contact
and bonded, and
- Not in contact if the regions are not in contact.
The variable names that appear in Abaqus/CAE for each data set indicate the regions to which the contact output applies. For
example, a CPRESS data set for an
individual contact surface pair (for a double-sided or node-based contact surface) is
named CPRESS SECONDARY NAME/MAIN
NAME
; the data sets for contact on the
SPOS or SNEG side of a
membrane or shell surface are named CPRESS SPOS
and
CPRESS SNEG
, respectively; and all other surface
variable output is named CPRESS
.
Contact output data for any individual contact surface pair, without summed contributions
from other contact pairs, are accessible using the Create Field
Output dialog box or the Abaqus Scripting Interface to the output database; these data sets have names of the form CPRESS
SECONDARY NAME/MAIN NAME
.
Because CPRESS,
CSHEAR1, and
CSHEAR2 are associated with particular
surfaces defined in the model, the surfaces must be included in the current display
group when these output variable results are probed. These variables can be probed only
at the nodes.