×
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

FEM mesh or element size dependency test

FEM mesh or element size dependency test

FEM mesh or element size dependency test

(OP)
Hello All,

I have done an FEM simulation and have this question. Is there a way you can know that your solution (Stress analysis or modal analysis) is mesh independent? I have varied the mesh resolution and each time i am getting a variation mostly in the first and second mode frequencies. The third, fourth, fifth and sixth seem to be changing less. So I am wondering whether the various values i am getting are physical (real or mesh independent) or non-physical (due to numerical errors, or mesh dependent). I am using ANSYS Modal as solver.

Any hint on how to get a mesh independent solution in FEM would be appreciated.

Thanks in advance!
Jimmy

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