cancel
Showing results for 
Search instead for 
Did you mean: 

Why the GPFORCE output recognizes some elements as QUAD4 when my mesh is made only of CTRIA3?

Creator
Creator

I have create a plate using CTRIA3 elements and applied enforced displacements on one edge. I run the Nonlinear transient analysis (SOL 601,129) and I printed on the punch file the GPFORCE.

Why some elements are identified as QUAD4 and other TRIA3?

 

This is part of my punch file

 

$TITLE   = *** NO HEADING DEFINED ***                                      27001
$SUBTITLE=                                                                 27002
$LABEL   =                                                                 27003
$GRID POINT FORCE BALANCE                                                  27004
$REAL OUTPUT                                                               27005
$SUBCASE ID =           1                                                  27006
$TIME =   0.7462000E+02                                                    27007
         1                 1        QUAD4                                  27008
-CONT-                  4.269383E-12     -7.676477E-13      4.750783E-09   27009
-CONT-                 -7.186115E-10     -2.071986E-09      0.000000E+00   27010
         1                 0        F-OF-SPC                               27011
-CONT-                 -4.269383E-12      7.676477E-13     -5.613922E-09   27012
-CONT-                  7.186115E-10      2.071986E-09      0.000000E+00   27013
         1                 0        *TOTALS*                               27014
-CONT-                  0.000000E+00      0.000000E+00     -8.631391E-10   27015
-CONT-                  0.000000E+00      0.000000E+00      0.000000E+00   27016
         2                 1        QUAD4                                  27017
-CONT-                 -3.885733E-12     -1.944956E-14     -1.067237E-08   27018
-CONT-                  0.000000E+00      0.000000E+00      0.000000E+00   27019
         2                 2        TRIA3                                  27020
-CONT-                 -4.841040E-13      2.371008E-13      7.281427E-10   27021
-CONT-                  0.000000E+00      0.000000E+00      0.000000E+00   27022
         2                 3        TRIA3                                  27023
-CONT-                  4.358020E-12     -4.934459E-14      6.972244E-09   27024
-CONT-                  0.000000E+00      0.000000E+00      0.000000E+00   27025
         2                 4        QUAD4                                  27026
-CONT-                 -3.790174E-14     -2.325453E-13     -6.800087E-10   27027
-CONT-                  0.000000E+00      0.000000E+00      0.000000E+00   27028
         2                 0        *TOTALS*                               27029
-CONT-                 -4.971902E-14     -6.423865E-14     -3.651994E-09   27030
-CONT-                  0.000000E+00      0.000000E+00      0.000000E+00   27031
         3                 3        TRIA3                                  27032
-CONT-                 -3.312197E-12      1.138927E-13     -1.327218E-08   27033
-CONT-                  0.000000E+00      0.000000E+00      0.000000E+00   27034
         3                 5        QUAD4                                  27035
-CONT-                  3.123354E-12     -1.095435E-13      1.226818E-08   27036
-CONT-                  0.000000E+00      0.000000E+00      0.000000E+00   27037
         3                 0        *TOTALS*                               27038