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





Hello to all of you!
I have a question about my simulation in TRANSIENT STRUCTURAL ANALISYS WORKBENCH with more contacts non linear. In my simulation I have a simulation dynamic of 9 seconds in that there are many body flexible and rigid, and from the results of VonMises equivalent stress I found for a non linear meachanical mesh a value of 338MPa. Later I tried to use a parameter in set, as input the value of mesh and output MaxStressVonMises. I have set three different types of values (Mesh>FaceSizing of 1 mm,0.5 mm and 0.3 mm) over an area of the mesh body where I have the maximum stress.When I launch the simulation with three parameters, in output i receive rispectively 338MPa, 510Mpa and 299Mpa.
So I wonder if my solution is unstable, because I would expect with a thickening of the mesh have increasingly converged to a value and not swinging as in this case. Do you have ideas about why? What adoperate method for validation of the mesh and be sure that the results do not depend on the mesh that is created? Are you familiar with books on stable and unstable convergence regarding FEM, so as to see theoretically cases?
Have a nice day! glasses

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!


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