×
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

MPC contact in Ansys

MPC contact in Ansys

MPC contact in Ansys

(OP)
Dear Sirs,

I have a problem with the contact definition of Ansys. I try to make a MPC contact between two sheets meshed with Shell 63 Elements. There is currently in my model, no gab between both sheets but the calculation reports me the following error message:
"MPC approach only supports certain bonded/no separation contact options. For general contact switch to other contact algorithm".

I don't know if i have a problem in my modeling or in the contact parameter.

Please find enclose my log file.

Could you please help me?

Benoit Donnaint
design Engineer
Hamon D'Hondt

RE: MPC contact in Ansys

I'm fairly new to ANSYS too, but from what I've experienced so far, in ANSYS:WorkBench the MPC is the method on which the analysis formulation for the contact is based on while the type to use only No Seperation / Bonded types. Therefore, the contact type should be no seperation / bonded only to be able to use MPC.

Did you define the contact type?

But maybe I'm wrong.
I'm sure someone else has a better understanding
and could provide a greater insight.

RE: MPC contact in Ansys

Firstly, are you using Ansys Mechanical (formerly Workbench), or Ansys Mechanical APDL (formerly Classic)? The approaches will be different.

What am I supposed to be seeing in your log file?

A screenshot of what you're trying to do would be helpful.

Is there a reason that you can't have a continuous mesh between the two sheet bodies? (GLUE command)

I'd start in the "Modeling Solid-Solid and Shell-Shell Assemblies" section of the Help File/Contact Technology Guide.

RE: MPC contact in Ansys

(OP)
Good Morning,

I work with Ansys Mechanical (APDL).

Please try to run my log file and seen the error message. Idon't understand my mistake.

I would like to join two sheets by means of MPC. It's a simple example to begin in the second step wih a big model. In order to avoid a coincident mesh between some components of bundle frame, I would like to use the MPC command but I don't find my mistake in this example.

I think that the best way is to run my model, to understand what I try to model.

Is it clear for you?

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