×
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

Boundary condition import / Interaction

Boundary condition import / Interaction

Boundary condition import / Interaction

(OP)
Dear Abaqus users,

I'm currently working on the importation of boundary condition amplitudes (extracted from a photogrametry system after laboratory tests) in a composite shell model, and I need to know how I can do the following constraints/interaction on the model.

The edges of the model are divided in several partitions edges. I would like to apply a displacement to each partition edge end, so the displacement of this partitioned edge is balanced between the two displacements applied.

Schematically, seen from the side of the shell in the XZ plane this would give:

^
z

1         2         3         4
ô_._._._._ô_._._._._ô_._._._._ô  x>
      a         b         c

with:
ô: partition & reference point were the amplitude is applied
_._._._: partitioned edge containing the element nodes '.'

For example, how can I constrain the edge 'a' so the displacements of the nodes of edge 'a' remain aligned with RP1 & 2 according to the displacement of the RP 1 & 2? Similar question with the edge 'b' and the RP 2&3?

I tried to do that with the equations and ties but it was not successful. Some nodes were over kinematically overconstrained...

Any help welcome.

Best regards.

 

RE: Boundary condition import / Interaction

You may be able to do this with *COUPLING.

Martin Stokes CEng MIMechE

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