Bumper model set up (Interface error)
Dear Altair support team
Let me explain regarding my FE model, I usually set up such kind of bumper model for crash analysis, unfortunately, this time I faced with the unfamiliar issues.
As usual, I used the Tied_contact (Type2) to represent the spot welding by specifying the contact pairs as [M] cotact_surface and [S] GRNODE manually.
You can see the spot weld locations as the figure below (green ball represent the spot weld).
For the self-contact, I used the Type19 and defined the contact pairs as SURF_EXT_PART for both.
Before running, I already used the Model checker but no error was found.
I will briefly show those kinds of errors,
ERROR ID : 558
** ERROR IN INTERFACE DEFINITON (MASTER SURFACE) <<< This error came from Self-contact when I remove self-contact, this issue disappeared.
ERROR ID : 611
** ERROR IN INITIAL PENETRATION IN INTERFACE <<< This error came from Self-contact when I remove self-contact, this issue disappeared. I already fixed the initial penetration of model
WARNING ID : 343
** WARNING : INITIAL PENETRATIONS IN INTERFACE
WARNING ID : 499
** WARNING : INITIAL PENETRATIONS IN INTERFACE
ERROR ID : 22
** ERROR IN SHELL DEFINITION
DESCRIPTION :
SHELL ID=222890 HAS 2 IDENTICAL NODES THAT ARE NOT 3 & 4
ERROR ID : 35
** ERROR IN TRIANGULAR SHELL GEOMETRY
For those issues, I tried to fix it first but it doesn't work, I can share you this model for further details and the error format is attached to this post
Best regard
Nut
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