Using Adaptive Convergence in Ansys Mechanical - Lesson 5

Ansys Mechanical can solve a variety of complex real-world mechanical problems. But how do you know about the accuracy of the solution? Is there a rule to decide the level of accuracy of the solution? In this video, we will answer these questions using Adaptive Convergence. It helps you get mesh-independent solutions such that the results don’t change noticeably with further mesh refinement. This can help you to define better mesh controls for future models to ensure numerical accuracy.
// INTERESTED IN MORE?
Visit Ansys Innovation Courses for free courses, including videos, handouts, simulation examples with starting files, homework problems and quizzes.
Visit today → bit.ly/3Eo8esU
// DOWNLOAD FREE ANSYS SOFTWARE
Ansys offers free student product downloads for homework, capstone projects, student competitions, online learning and more!
Download today → bit.ly/32eEcuR
// QUESTIONS ABOUT THIS VIDEO OR USING ANSYS?
Get help from Ansys experts and peers through the Ansys Learning Forum. Search for answers to common questions, browse discussion categories or ask your own question.
Visit today → bit.ly/3qsytK2
// STAY IN THE LOOP
Follow our Ansys Academic LinkedIn showcase page for updates on learning resources, events, job opportunities, cutting-edge simulation content and more!
Follow today → bit.ly/3Bbaaow
00:00 - Intro
01:22 - Definition of Adaptive Convergence
02:08 - Definitions of Relative Accuracy and Relative Error
03:20 - Difference between Adaptive Convergence and Convergence in Solving a Nonlinear Problem
05:06 - Using Large Deflection
06:21 - Using Adaptive Convergence
07:47 - Defining Allowable Change for Adaptive Convergence
08:15 - Defining Refinement Depth
09:04 - Defining Max Refinement Loops
09:25 - Procedure for Adaptive Convergence
10:51 - Using Adaptive Convergence for Stress Results on a Specified Region
11:58 - Definition of Stress Singularities
12:21 - Resolving Stress Singularities for Adaptive Convergence
13:45 - Factors that Influence Analysis Accuracy

[@AnsysLearning]

This video is part of the free Ansys Innovation Course, 'Obtaining Numerically Accurate Results Using Ansys Mechanical'. Access all of the course contents including additional lessons, handouts, simulation examples with starting files, homework problems, and quizzes: courses.ansys.com/index.php/courses/numerically-accurate-results/.
Check out other courses on the website while you’re there. Happy learning!

[@AtliTobiasson]

Is my observation correct that elements are individually refined by splitting them into smaller tetrahedra? If yes, then I would follow up with: How can I make the iterations depend on parameters that have been applied in the meshing settings?

[@changw_w9413]

Is it that singularity will also occur in the deformation field? Why does the video say deformation will always get a converged result? Could you please help to clarify? Thank you.

[@AnsysLearning]

Thanks for watching! Please post your query on the Ansys Learning Forum for a detailed answer from the wider Ansys Community: ansys.com/forum.

[@bonglee54]

Is there any recommend allowable change percentage? 5% is usual or this number is usually controlled by the designer? Thanks

[@AnsysLearning]

Thanks for watching! Please visit our Ansys Learning Forum to get answers to questions just like these.
Visit today at www.ansys.com/forum.

[@oscardariomonsalvecifuente590]

Is the adaptive convergence tool available in the Thermal-Electric module?

[@AnsysLearning]

Thanks for watching! Please post your query on the Ansys Learning Forum for a detailed answer from the wider Ansys Community: ansys.com/forum

[@alemumerga8106]

how can i get convergence icon on my ANSYS

[@AnsysLearning]

Thanks for watching! Please post your query on the Ansys Learning Forum for a detailed answer from the wider Ansys Community: ansys.com/forum.