×
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

Non convergence

Non convergence

Non convergence

(OP)
Hello all,

I am trying to do a convergence analysis. But there is an error coming A FAILURE OCCURED INSIDE THE MESH REFINEMENT MODULE. I tried many options but the solutuion does not get converged (i am getting result at the base mesh). What is this error about can anybody help me??

RE: Non convergence

Since the error is about mesh refinement, did you turn on the mesh refinement feature such as mesh adaptivity?

Back to the convergence, the strongly nonlinear model does not convergent all the time. It highly depends on your specific model, parameters, meshes, etc. For some extremely nonlinear models, no algorithm can make it convergent.

https://welsim.com

RE: Non convergence

(OP)
Thanks for your reply....
What i understood is, if i am converging stress on one part of the assembly then i can not give local mesh size to that body though i can apply size on surface or curve of that part. I removed local mesh size and the ERROR IN MESH REFINEMENT MODULE Is gone.correct me if i am wrong.......
But there are still many problem. I am learning how convergence work. When i apply fixed support to a simple shaft convergence keeps on increasing mesh and stress. It never reaches a single value but keeps on increasing. But same shaft if i apply dispacement support, it converge to 1 single value. How convergence is related to the boundry condition i want to know?? What are the different effect of boundry condition on convergence. Can u tell me if there is any text available????

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! Already a Member? Login


Resources

eBook - Integrating the Engineering Ecosystem
Aras Innovator provides multiple options for integrating data between systems, depending on the scenario. Utilizing the right approach to meet specific business requirements is vital. These needs range from authoring tools, federating data from various and dissimilar databases, and triggering processes and workflows. Download Now
Research Report - Simulation-Driven Design for SOLIDWORKS Users
In this engineering.com research report, we discuss the rising role of simulation and the paradigm shift commonly called the democratization of simulation. In particular, we focus on how SOLIDWORKS users can take advantage of simulation-driven design through two analysis tools: SOLIDWORKS Simulation and 3DEXPERIENCE WORKS. Download Now
White Paper - Industry 4.0 and the Future of Engineering Education
With industries becoming more automated, more tech-driven and more complex, engineers need to keep their skills and knowledge up to date in order to stay on top of this wave—and to be prepared for the Industry 4.0 future. The University of Cincinnati offers two online Master of Engineering degree programs designed specifically for practicing engineers. Download Now
eBook - The Design Gridlock Manifesto
In this eBook, you’ll learn 6 ways old CAD technology slows your company down and hear how design teams have put those problems to rest. “The Design Gridlock Manifesto” shares first-hand modern CAD experiences from 15 companies around the world. Download Now

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