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


convergency error: Ansys Modelling Triaxial Test (Drucker-Prager Material Model)

convergency error: Ansys Modelling Triaxial Test (Drucker-Prager Material Model)

convergency error: Ansys Modelling Triaxial Test (Drucker-Prager Material Model)

Dear all,
Hope someone can help me with the following:
I am trying to model a triaxial test in Ansys. Which means you have a cylinder of sand. At the side a pressure is applied and at the top.

I get the following error: solution not converged at time 1.E-02 (load step 1 substep1). Run terminated.

I am using the following:
- Element type: Solid187
- Material Model1: Linear Isotropic: EX=1E+008 PRXY=0.28 & Drucker-Prager: c=100 friction angle=31 flow angle=6
- soil sample is a cylinder 50x100mm (diameter x length)
- sig1=0.5E6 N/m2 (top pressure)
- sig2= 0.1E6 N/m2 (side pressure)

bottom part is constraint in y direction. And the sides are marked Symmetrical.

Can you maybe advice me how to solve this error? Or do you have an example of a model?

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