illustrated in Figure 2.6: Examples of Boundary Conditions (p. 29). The DL and DA commands work in
a similar fashion when you apply symmetry or antisymmetry conditions on lines and areas.
NoteIf the node rotation angles that are in the database while you are using the general postpro-
cessor (POST1) are different from those used in the solution being postprocessed, POST1
may display incorrect results. This condition usually results if you introduce node rotations
in a second or later load step by applying symmetry or antisymmetry boundary conditions.
Erroneous cases display the following message in POST1 when you execute the SET command
(Utility Menu> List> Results> Load Step Summary):
*** WARNING ***
Cumulative iteration 1 may have been solved using
different model or boundary condition data than is
currently stored. POST1 results may be erroneous
unless you resume from a .db file matching this solution.Figure 2.5: Symmetry and Antisymmetry Boundary Conditions
Figure 2.6: Examples of Boundary Conditions
P
SymmetryplaneModeledportionPFFAntisymmetryplaneModeledportion(a) 2 -Dplatemodelwithsymmetry (b) 2 -Dplatemodelwithantisymmetry2.5.5. Transferring Constraints
To transfer constraints that have been applied to the solid model to the corresponding finite element
model, use one of the following:
Command(s):DTRAN
GUI: Main Menu> Preprocessor> Loads> Define Loads> Operate> Transfer to FE> Constraints
Main Menu> Solution> Define Loads> Operate> Transfer to FE> Constraints
To transfer all solid model boundary conditions, use one of the following:
Release 15.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationApplying Loads