×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

how to simulate contact using shell and contact elements

how to simulate contact using shell and contact elements

how to simulate contact using shell and contact elements

(OP)
Dear All,

I am trying to simulate bonded contact between two surfaces. I am using shell63 elements for the structure and then using CONTA177 on the linking lines. However I am obtaining an error:

*** ERROR *** CP = 80.044 TIME= 15:14:24
Real constant 1 has been referenced by at least element types 2 and 1,
one of which is contact element type.


Anyone knows how to solve this error and what is the best way to simulate contact using shell63 and conta177 elements?
I already tried to assign different real constants to the contact lines and to the shell areas, but it is not working

Any help appreciated,
Thanks,

RE: how to simulate contact using shell and contact elements

Hi,

Quote (MCVZ)

Anyone knows how to solve this error and what is the best way to simulate contact using shell63 and conta177 elements?
I already tried to assign different real constants to the contact lines and to the shell areas, but it is not working

It would help to know why it doesn't work. You error message is pretty clear. Assign your real const 1 to shell elements and define a real const 2 for conta / targe elements then give us the error message.

Regards

RE: how to simulate contact using shell and contact elements

Contact is simulated by placing contact elements on one body and target elements on the other body. The contact and target elements are linked because they have the same real constant number. If non-contact elements, in this case probably your shell63, have the same real constant number, it doesn't work. From the Contact Technology Guide:

3.9.1. Real Constants

Two real constants, R1 and R2, are used to define the geometry of the target surface elements. The remaining are used by the contact surface elements.

Use the REAL command to set the real constant before you make the contact elements.


Rick Fischer
Principal Engineer
Argonne National Laboratory

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources