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!

*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.

Jobs

ANSYS Workbench contact problem

ANSYS Workbench contact problem

(OP)
I'm currently working on my bachelor's thesis in mechanical engineering.

A part of my thesis is conducting a finite element analysis on a sump designed for sewage.

As shown on the attached picture, I've applied a preliminary point load on top of the sump-lid. As a result, the upper layer of the lid has been "pushed through" the lower part of the lid.

FYI: The load will be distributed over a contact patch at a later point in the analysis.

As this is a nonlinear analysis due to the nonlinear contacts, and due to nonlinear materials which will be added later, trying and failing takes far to long, therefore I ask for your help.

I suspect the problem is related to the contact options I've used. I've tried playing around with different combinations of contact options, without success.
Between the top and bottom surface of the lid, there is a 5 mm gap. Offsetting the contacts by 5 mm doesn't seem to solve the problem either.

How can this be solved?

RE: ANSYS Workbench contact problem

Could you post a picture of the settings of the contact in question. One thing you should do first
to ensure that the surfaces are "seeing" each other is to put more elements in that area.

RE: ANSYS Workbench contact problem

Hi Anders,

Try checking the Contact Tool (RMB Connections, Insert, Contact Tool) to help troubleshoot your contacts before a solve.

I agree with L_K on the mesh density. Perhaps also try increasing the contact pinball radius.


Best regards,
Sze Kwan (Jason) Cheah

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


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close